JB/T 5946-1991 General technical requirements for painting of construction machinery
Some standard content:
Machinery Industry Standard of the People's Republic of China
JB/T5946-1991
Engineering Machinery
General Technical Conditions for Painting
Published on December 12, 1991
Implementation by the Ministry of Machinery and Electronics Industry of the People's Republic of China on July 1, 1992
Mechanical Industry Standard of the People's Republic of China
Engineering Machinery
General Technical Conditions for Painting
Subject Content and Scope of Application
This standard specifies the general technical requirements, test methods and inspection rules for the painting of engineering machinery products. This standard is applicable to the protective and decorative painting of engineering machinery products. Reference Standards
JB2299
GB1729
GB1743
GB1764
GB1732
GB1731
G B1730
GB1865
GB1733
GB1771
GB1720
3 Terminology
3.1 Primer
Painting color and safety marking paint film of mining, engineering and lifting and transportation machinery products
Color and appearance determination method
Gloss determination method
Thickness determination method
Impact resistance determination method
Flexibility test
Remove pendulum damping test
Hardness test
Aging (artificial acceleration) test
Water resistance test
Salt spray resistance test
Adhesion test
JB/T5946-1991
Directly applied to the surface of the object for priming, it is a base paint; it has strong anti-rust ability and adhesion, and has an anti-rust effect on metal. Putty
Used on the metal surface pre-coated with primer to fill pits, gaps, bumps and scratches and other defects; putty should have good bonding and polishing properties, and after polishing, it will have a flat and smooth surface. 3.3 Topcoat
Used after primer and putty, it protects the primer and putty and has an anti-corrosion effect on the metal; the topcoat should have good weather resistance, chemical stability and physical and mechanical properties. The coating film is bright and colorful, making the product appearance smooth, neat and beautiful. 3.4 Thinner
Used to dilute the paint, it is one of the auxiliary materials of the paint. Paint requirements
4.1 The primer, putty, second primer, topcoat and thinner used for painting must be used in combination. The specific varieties are selected according to the provisions of Table 1; the manufacturer is also allowed to select other matching products according to the specific situation; but when the selected paints are not of the same type, they should have good matching properties. 4.2 The quality of the paint must comply with the standards of the Ministry of Chemical Industry or relevant standards. Approved by the Ministry of Machinery and Electronics Industry on December 12, 1991 and implemented on July 1, 1992
C06-11
Iron red alkyd primer
Iron red, zinc yellow perchlorethylene
Ethylene primer
Iron red polyurethane primer
H06-19
Alkyd putties of various colors
JB/T5946-1991
Second coat paint
c06-10
Alkyd Second primer
Perchlorethylene
Various colors of perchlorethylene putty
Various colors of polyurethane putty
Weig07-3.G07-5
Perchlorethylene
Iron red, zinc yellow epoxy ester
Various colors of epoxy ester putty
Primer or TH861 epoxy
Quick drying primer
Coating location and coating color
Second primer
Polyurethane second primer
|Epoxy ester primer
C04-42
All kinds of alkyd enamel or
Alkyd for construction machinery
All kinds of perhydrovinyl
External magnetic speed
All kinds of polyurethane enamel
All kinds of epoxy ester nitro
enamel or acrylic topcoat for construction machinery
Inner cavity dye
Alkyd oil resistant
Anti-rust paint
Perchlorethylene
Anti-rust Corrosion paint
Polyurethane silicone paint
Red lead epoxy ester anti-corrosion
Static release agent
Thinner
Perchloroethylene
Thinner
Quick azo ester
Thinner
Epoxy ester nitro
Thinner
Or corresponding
Thinner
The paint amount color of the external surface of the product fuselage shall be implemented in accordance with the provisions of JB2299; the manufacturer is also allowed to determine it according to user requirements. 5.1
Different decorative lines or colors can be used on the fuselage according to specific circumstances. 5.2
The unprocessed inner wall of the gear box body and box cover, bearing cover, and the unprocessed surface of parts that are often immersed in oil should be coated with oil-resistant paint. 5.4
Parts or surfaces that are difficult or impossible to paint after assembly should be painted before assembly. 5.5
The painting of the parts that need attention shall be in accordance with the provisions of Table 2. Table 2
Machine Part Name
Mobile Machinery Base Frame Operating Mechanism Handle, Button, Switch, Handwheel Bucket Teeth, Pedal, Walkway, Bucket, Counterweight Iron Fork, Hook, Reel, Wheel Vehicle
The scale indicating the limit position on the indicator, the exposed rotating parts such as flywheel, pulley, gear, etc., the outer surface of the brake steel belt, the handle and switch of the safety device, the oil nozzle, oil plug, oiler, fire-fighting equipment and its placement Xi
Eye-catching color
Black or the same color as the machine body
5.6 Various special signs on the machine, such as the manufacturer's name, trademark, indicator symbol, warning sign, etc., should be painted with a color that is obviously different from the color of the part where the sign is located, coordinated and eye-catching.
5.7 If the coating of the purchased and outsourced parts that have been painted is not damaged and does not affect the overall appearance after assembly, they do not need to be painted again. Otherwise, they must be repainted with the same paint as the original color.
JB/T5946-1991
When the machine is working or moving, the parts that are prone to magnetic collision should be painted with eye-catching safety signs according to the provisions of JB2299. The parts and components that are not painted shall be in accordance with the provisions of Table 3.
Coating construction
Types of parts
Resin products
Rubber parts
Vinyl products
Electroplating parts
Sensitive glass parts
Wire rope
Lightning battery
Steering wheel, button, fuse box, headlight hose, tire, belt, etc.
Lubricating seat, handrail, wire, etc.
Piston rod, instrument decorative ring, etc.
Light, rearview mirror, window glass, etc.
During coating construction, various regulations on temperature, humidity, recoating interval, mixing method, precautions, etc. of various coatings must be strictly observed. 61
Requirements for construction conditions
6.1.1Coating construction should be carried out in a clean, dry, well-ventilated and well-lit place. The ambient temperature should be maintained at 10-35℃. The relative humidity shall not exceed 75%. If the construction is carried out at a higher immersion than this, moisture-proof measures shall be taken. 6.1.2 Painting tools must be clean. Compressed air for spraying should be kept clean and dry. 6.2 Requirements for surface cleaning
6.2.1 The surface of parts treated by shot peening (sand blasting) shall be of metallic color and shall not have any residual oxide scale, molding sand, rust, etc. 2 The surface of parts treated by pickling and phosphating shall be free of oxide scale, rust, dirt, oil, acid and alkali solution, etc. The phosphate film shall be densely crystallized, 6-2.2
continuous and uniform, and defects such as green spots, severe dust hanging, and loose crystals are not allowed. 6.2.3 The surface of parts polished by hand shall not have any residual floating rust, oxide scale, molding sand, welding slag, oil, etc. 6.3 Painting requirements
6.3.1 Primer application
6.3.1.1 After the painted surface is cleaned, a primer should be applied within 4 hours. 6.3.1.2 Except for the following cases, all other metal parts should be primed. Processed surface of parts;
Standard parts;
Nonferrous alloy castings (except aluminum alloy);
Parts that need to be welded during assembly of parts and components. The primer spraying (brushing) should be uniform, and the coating should not have bubbles, cracks, shedding, missing coating, wrinkles, etc. 6.3.1.3
Inner cavity paint application
Inner cavity surface painting should be carried out after the primer is completely dry. The inner cavity paint should be applied evenly without missing coating. However, the inner cavity surface of a completely enclosed weldment does not need to be painted. 6.3.2.2
Putty-scraping
For the surface of parts and components that are directly related to the appearance quality, if there are local unevenness and scars, putty can be applied 1 to 3 times. 6- 3- 3 1
Putty should not be applied too thickly. If multiple layers are required to make it level, it must be done after the previous layer is completely dry and polished. 6.3. 3-2
Putty-scraping should be done after the base is completely dry. After polishing, the entire surface of the part should be flat, smooth, hard, and matte, with clear lines and corners. There should be no obvious joint marks between the putty and the surface of the part.
Putty-scraping should not be done on the main welds.
6.3. 3. 4
6.3.4 Topcoat
6. 3. 4. 1
JB/T 59461991
The last topcoat of the product or the whole machine surface should be sprayed (painted) after inspection, installation, adjustment and test run. During installation, adjustment or movement, if the original coating is damaged, the damaged part should be repainted with the same paint, and then at least two coats of topcoat should be applied. The next coat can be applied only after the previous coat is completely dry. Each coat should be applied once in both the vertical and horizontal directions. The coating should be uniform and there should be no surging.
6.3. 4. 4
Before the coating film dries, proper protection should be taken and it should be avoided from direct sunlight. Coating quality requirements
The main quality indicators of the coating should comply with the provisions of Table 4. Table 4
Indicator items
Coating color
Coating appearance
Coating gloss
Coating thickness
Mechanical properties
Mold resistance
Water resistance
Salt resistance
Adhesion potential
Test method
Same as standard color sample
Should be smooth and flat, without bubbling, cracks, wrinkles, missing coating, peeling, different colors of paint shall not be contaminated with each other, and the boundary shall be clear. For the surface that has a direct impact on the appearance, the coating gloss shall not be less than 80%80~ 120pm
Impact strength: 490N·cm
Flexibility: 1~2mm
Degree:>0.3
After one year of use, the coating should be flat (no blistering, no cracking, slight powdering), and the gloss loss is allowed to be no more than 50%, and the color change is allowed. Soaked in distilled water at room temperature for 2 hours, take it out and place it for 2 hours, there is slight gloss loss, no blistering, discoloration, rust, etc. Put it in neutral salt spray for 100 hours, take it out and place it for 2 hours, there is slight color change, and the coating has no blistering, rust, shedding, etc. 1~3 levels
The coating quality test and determination are carried out with the coating sample made according to the specified process or the product parts with the same process conditions. The coating quality determination method is specified in Table 5.
Coating color and appearance
Coating gloss
Coating thickness
Mechanical properties
Recovery resistance
Water resistance
Salt spray resistance
Adhesion
Measured according to GB1729
Measured according to GB1743
Measured according to GB1764
Impact strength: measured according to GB1732| |tt||Flexibility: Determined according to GB1731
Strength: Determined according to GB1730
Determined according to GB1865
Determined according to GB1733
Determined according to GB1771
Determined according to GB1720
JB/T5946-1991
The effective storage period of the coating sample used for coating quality determination is six months. Inspection rules
After the final coating is applied, it can be put into storage only after inspection and acceptance by the quality inspection department. The inspection of coating surface cleaning shall be in accordance with the provisions of Table 6.
Oxide scale
Flying water and residual
External surface
Inner surface
No
No
No
No
Note: ①External surface includes: internal and external surfaces directly exposed from the outside; internal surface of the open part, ②Dirty matter includes: sand, acid and alkali liquid, etc. 9.3
Inspection of primer layer shall be in accordance with the provisions of Table 7.
Adhesion
Coating film thickness
Coating acid fall
Missing coating, peeling
Non-coating area
Paint sticking
Note: Same as the note of Table 6.
Outer surface
Inner surface
No residue
30~40μm
No
Not obvious
No
Not serious
No
No
No
The inspection of the topcoat layer shall be in accordance with the provisions of Table 8.
Inspection method
Inspection method
Attach transparent adhesive tape (length not less than
than 50mm). There should be no thorns after tearing it off
Electromagnetic thickness gauge
Inspection frequency
Inspection rate
Spot check, the number of spot checks for each batch shall not be less than
1 piece shall be randomly checked for each batch
Remote inspection
Color of paint film
Thickness of paint film
Dirt, oil stains
Blowholes, wrinkles, bubbles
Paint splashes
Paint on non-painted areas
Cracks, peeling, slippage
Joints of multiple colors
Note: Same as the note in Table 6.
Additional instructions:
JB/T5946-1991
Outer surface
Inner surface
Same as paint film sample
>40μm
No
No
Not obvious
No
No
No
Boundary should be clear
No
Not serious
Not serious
Electromagnetic thickness gauge
This standard is proposed and managed by Tianjin Engineering Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by Tianjin Engineering Machinery Research Institute. The main drafter of this standard is Zhao Zhiqiang.
Piece by piece inspection
One piece for each push-pull set
Transparent piece inspection
People's Republic of China
Mechanical industry standards
Engineering machinery
General technical conditions for painting
JB/T 59461991
Published by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2, Shouti South Road, Beijing
Langbian 100044)
Printing sheet 5/8 Word count 12,000
Format 880×1230
First edition in March 1992 First printing in March 1992 Number of copies 1-500
Price 10.00 yuan
No. 0518
Mechanical Industry Standard Service Network: http://wwwJB.ac.cn161_964
Before the coating is dry, proper protection should be taken and direct sunlight should be avoided. Coating quality requirements
The main quality indicators of the coating should comply with the provisions of Table 4. Table 4
Indicator items
Coating color
Coating appearance
Coating gloss
Coating thickness
Mechanical properties
Mold resistance
Water resistance
Salt resistance
Adhesion potential
Test method
Same as standard color sample
Should be smooth and flat, without bubbling, cracks, wrinkles, missing coating, peeling, each color paint shall not be contaminated with each other, the junction is clear, and the surface that has a direct impact on the appearance, the coating gloss shall not be less than 80%80~ 120pm
Impact strength: 490N·cm
Flexibility: 1~2mm
Degree:>0.3
After one year of use, the coating should be flat (no blistering, no cracking, slight powdering), and the gloss loss is allowed to be no more than 50%, and the color change is allowed. Soaked in distilled water at room temperature for 2 hours, and there is slight gloss loss, no blistering, discoloration, rust, etc. After being placed in neutral salt spray for 100 hours, there is slight color change after being taken out and placed for 2 hours, and the coating has no blistering, rusting, falling off, etc. 1~3 levels
The coating quality test and determination are carried out using the coating sample made according to the specified process or the product parts with the same process conditions. The coating quality determination method is specified in Table 5.
Coating color and appearance
Coating gloss
Coating thickness
Mechanical properties
Recovery resistance
Water resistance
Salt spray resistance
Adhesion
Measured according to GB1729
Measured according to GB1743
Measured according to GB1764
Impact strength: measured according to GB1732| |tt||Flexibility: Determined according to GB1731
Strength: Determined according to GB1730
Determined according to GB1865
Determined according to GB1733
Determined according to GB1771
Determined according to GB1720
JB/T5946-1991
The effective storage period of the coating sample used for coating quality determination is six months. Inspection rules
After the final coating is applied, it can be put into storage only after inspection and acceptance by the quality inspection department. The inspection of coating surface cleaning shall be in accordance with the provisions of Table 6.
Oxide scale
Flying water and residual growth
External surface
Inner surface
No
No
No
No
Note: ①External surface includes: internal and external surfaces directly exposed from the outside; internal surface of the open part, ②Dirty matter includes: sand, acid and alkali liquid, etc. 9.3
Inspection of primer layer shall be in accordance with the provisions of Table 7.
Adhesion
Coating film thickness
Coating acid fall
Missing coating, peeling
Non-coating area
Paint sticking
Note: Same as the note of Table 6.
Outer surface
Inner surface
No residue
30~40μm
No
Not obvious
No
Not serious
No
No
No
The inspection of the topcoat layer shall be in accordance with the provisions of Table 8.
Inspection method
Inspection method
Attach transparent adhesive tape (length not less than
than 50mm). There should be no thorns after tearing it off
Electromagnetic thickness gauge
Inspection frequency
Inspection rate
Spot check, the number of spot checks for each batch shall not be less than
1 piece shall be randomly checked for each batch
Remote inspection
Color of paint film
Thickness of paint film
Dirt, oil stains
Blowholes, wrinkles, bubbles
Paint splashes
Paint on non-painted areas
Cracks, peeling, slippage
Joints of multiple colors
Note: Same as the note in Table 6.
Additional instructions:
JB/T5946-1991
Outer surface
Inner surface
Same as paint film sample
>40μm
No
No
Not obviousbZxz.net
No
No
No
Boundary should be clear
No
Not serious
Not serious
Electromagnetic thickness gauge
This standard is proposed and managed by Tianjin Engineering Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by Tianjin Engineering Machinery Research Institute. The main drafter of this standard is Zhao Zhiqiang.
Piece by piece inspection
One piece for each push-pull set
Transparent piece inspection
People's Republic of China
Mechanical industry standards
Engineering machinery
General technical conditions for painting
JB/T 59461991
Published by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2, Shouti South Road, Beijing
Langbian 100044)
Printing sheet 5/8 Word count 12,000
Format 880×1230
First edition in March 1992 First printing in March 1992 Number of copies 1-500
Price 10.00 yuan
No. 0518
Mechanical Industry Standard Service Network: http://wwwJB.ac.cn161_964
Before the coating is dry, proper protection should be taken and direct sunlight should be avoided. Coating quality requirements
The main quality indicators of the coating should comply with the provisions of Table 4. Table 4
Indicator items
Coating color
Coating appearance
Coating gloss
Coating thickness
Mechanical properties
Mold resistance
Water resistance
Salt resistance
Adhesion potential
Test method
Same as standard color sample
Should be smooth and flat, without bubbling, cracks, wrinkles, missing coating, peeling, each color paint shall not be contaminated with each other, and the boundary is clear. For the surface that has a direct impact on the appearance, the coating gloss shall not be less than 80%80~ 120pm
Impact strength: 490N·cm
Flexibility: 1~2mm
Degree:>0.3
After one year of use, the coating should be flat (no blistering, no cracking, slight powdering), and the gloss loss is allowed to be no more than 50%, and the color change is allowed. Soaked in distilled water at room temperature for 2 hours, take it out and place it for 2 hours, there is slight gloss loss, no blistering, discoloration, rust, etc. Put it in neutral salt spray for 100 hours, take it out and place it for 2 hours, there is slight color change, and the coating has no blistering, rust, shedding, etc. 1~3 levels
The coating quality test and determination are carried out with the coating sample made according to the specified process or the product parts with the same process conditions. The coating quality determination method is specified in Table 5.
Coating color and appearance
Coating gloss
Coating thickness
Mechanical properties
Recovery resistance
Water resistance
Salt spray resistance
Adhesion
Measured according to GB1729
Measured according to GB1743
Measured according to GB1764
Impact strength: measured according to GB1732| |tt||Flexibility: Determined according to GB1731
Strength: Determined according to GB1730
Determined according to GB1865
Determined according to GB1733
Determined according to GB1771
Determined according to GB1720
JB/T5946-1991
The effective storage period of the coating sample used for coating quality determination is six months. Inspection rules
After the final coating is applied, it can be put into storage only after inspection and acceptance by the quality inspection department. The inspection of coating surface cleaning shall be in accordance with the provisions of Table 6.
Oxide scale
Flying water and residual
External surface
Inner surface
No
No
No
No
Note: ①External surface includes: internal and external surfaces directly exposed from the outside; internal surface of the open part, ②Dirty matter includes: sand, acid and alkali liquid, etc. 9.3
Inspection of primer layer shall be in accordance with the provisions of Table 7.
Adhesion
Coating film thickness
Coating acid fall
Missing coating, peeling
Non-coating area
Paint sticking
Note: Same as the note of Table 6.
Outer surface
Inner surface
No residue
30~40μm
No
Not obvious
No
Not serious
No
No
No
The inspection of the topcoat layer shall be in accordance with the provisions of Table 8.
Inspection method
Inspection method
Attach transparent adhesive tape (length not less than
than 50mm). There should be no thorns after tearing it off
Electromagnetic thickness gauge
Inspection frequency
Inspection rate
Spot check, the number of spot checks for each batch shall not be less than
1 piece shall be randomly checked for each batch
Remote inspection
Color of paint film
Thickness of paint film
Dirt, oil stains
Blowholes, wrinkles, bubbles
Paint splashes
Paint on non-painted areas
Cracks, peeling, slippage
Joints of multiple colors
Note: Same as the note in Table 6.
Additional instructions:
JB/T5946-1991
Outer surface
Inner surface
Same as paint film sample
>40μm
No
No
Not obvious
No
No
No
Boundary should be clear
No
Not serious
Not serious
Electromagnetic thickness gauge
This standard is proposed and managed by Tianjin Engineering Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by Tianjin Engineering Machinery Research Institute. The main drafter of this standard is Zhao Zhiqiang.
Piece by piece inspection
One piece for each push-pull set
Transparent piece inspection
People's Republic of China
Mechanical industry standards
Engineering machinery
General technical conditions for painting
JB/T 59461991
Published by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2, Shouti South Road, Beijing
Langbian 100044)
Printing sheet 5/8 Word count 12,000
Format 880×1230
First edition in March 1992 First printing in March 1992 Number of copies 1-500
Price 10.00 yuan
No. 0518
Mechanical Industry Standard Service Network: http://wwwJB.ac.cn161_963
Inspection of primer layer shall be in accordance with the provisions of Table 7.
Adhesion
Coating thickness
Paint acid fall
Missed coating, peeling
Non-coated areas
Paint sticks
Note: Same as the note of Table 6.
Outer surface
Inner surface
No fall
30~40μm
No
Not obvious
No
Not serious
No
No
No
No
Inspection of topcoat layer shall be in accordance with the provisions of Table 8,
Inspection method
Inspection method
Apply transparent adhesive tape (length not less than 50mm) and there shall be no thorns and fall after tearing it off
Electromagnetic thickness gauge
Inspection frequency
Inspection rate
Spot check, the number of spot checks for each batch shall not be less than
1 piece shall be randomly checked for each batch
Remote inspection
Color of paint film
Thickness of paint film
Dirt, oil stains
Blowholes, wrinkles, bubbles
Paint splashes
Paint on non-painted areas
Cracks, peeling, slippage
Joints of multiple colors
Note: Same as the note in Table 6.
Additional instructions:
JB/T5946-1991
Outer surface
Inner surface
Same as paint film sample
>40μm
No
No
Not obvious
No
No
No
Boundary should be clear
No
Not serious
Not serious
Electromagnetic thickness gauge
This standard is proposed and managed by Tianjin Engineering Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by Tianjin Engineering Machinery Research Institute. The main drafter of this standard is Zhao Zhiqiang.
Piece by piece inspection
One piece for each push-pull set
Transparent piece inspection
People's Republic of China
Mechanical industry standards
Engineering machinery
General technical conditions for painting
JB/T 59461991
Published by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2, Shouti South Road, Beijing
Langbian 100044)
Printing sheet 5/8 Word count 12,000
Format 880×1230
First edition in March 1992 First printing in March 1992 Number of copies 1-500
Price 10.00 yuan
No. 0518
Mechanical Industry Standard Service Network: http://wwwJB.ac.cn161_963
Inspection of primer layer shall be in accordance with the provisions of Table 7.
Adhesion
Coating thickness
Paint acid fall
Missed coating, peeling
Non-coated areas
Paint sticks
Note: Same as the note of Table 6.
Outer surface
Inner surface
No fall
30~40μm
No
Not obvious
No
Not serious
No
No
No
No
Inspection of topcoat layer shall be in accordance with the provisions of Table 8,
Inspection method
Inspection method
Apply transparent adhesive tape (length not less than
>50mm) and there shall be no thorns and fall after tearing it off
Electromagnetic thickness gauge
Inspection frequency
Inspection rate
Spot check, the number of spot checks for each batch shall not be less than
1 piece shall be randomly checked for each batch
Remote inspection
Color of paint film
Thickness of paint film
Dirt, oil stains
Blowholes, wrinkles, bubbles
Paint splashes
Paint on non-painted areas
Cracks, peeling, slippage
Joints of multiple colors
Note: Same as the note in Table 6.
Additional instructions:
JB/T5946-1991
Outer surface
Inner surface
Same as paint film sample
>40μm
No
No
Not obvious
No
No
No
Boundary should be clear
No
Not serious
Not serious
Electromagnetic thickness gauge
This standard is proposed and managed by Tianjin Engineering Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by Tianjin Engineering Machinery Research Institute. The main drafter of this standard is Zhao Zhiqiang.
Piece by piece inspection
One piece for each push-pull set
Transparent piece inspection
People's Republic of China
Mechanical industry standards
Engineering machinery
General technical conditions for painting
JB/T 59461991
Published by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2, Shouti South Road, Beijing
Langbian 100044)
Printing sheet 5/8 Word count 12,000
Format 880×1230
First edition in March 1992 First printing in March 1992 Number of copies 1-500
Price 10.00 yuan
No. 0518
Mechanical Industry Standard Service Network: http://wwwJB.ac.cn161_96
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.