Some standard content:
ICS 77. 140. 75
National Standard of the People's Republic of China
GB/T 3093-2002
Replaces GB/3093-985
High-pressure seamless steel tubes for diesel engine
High-pressure seamless steel tubes for diesel engine2002-09-11Promulgated
General Administration of Quality Supervision, Inspection and Quarantine
Implementation on 2003-02-01
GB/T 3093-2002
This standard is not equivalent to DIN79GC-1986 & Internal combustion engine fuel injection device should use convex road, that is, high-pressure fuel injection pipe structure. According to China's situation, it is different from GBO3-1S8 general case for diesel engine high-pressure seamless steel tubes? The revision is carried out. Compared with the German standard, the size series of the standard is smaller. The allowable deviation of the outer diameter and the allowable deviation of the inner diameter are the same. The accuracy of H and C grades is the same as that of the German standard A and 13 grades. However, there are ten differences in the characteristics: the chemical composition and mechanical properties of the 10A brand steel in the material series are consistent with the German standard S.30AI. This standard has been revised in the following aspects: Deleted the original standard 2 and 1, respectively, describing the size series and allowable basis: Added the maximum bending radius (based on the center axis of the steel pipe); Modified the value of the difference between the maximum and minimum thickness on any transverse surface of the steel pipe; Modified the allowable deviation of the weight and single steel pipe in the weight text The new grade is added to reduce the sulfur and phosphorus content of each grade of steel; the open-hearth heat treatment method is adopted: the mechanical properties of the new grade are specified: the maximum test pressure of the wave pressure test is specified. This standard will be implemented from February 1, 2003. Since its implementation, it will replace G3/T product C93-195 for high-quality steel pipes for machine use. This standard was drafted by the former National Metallurgical Industry Bureau and the National Steel Standardization Technical Committee. The drafting unit of this standard is Baosteel Group! Haigang Steel Pipe Co., Ltd. This standard can be used as a single person, type jade elimination. The previous versions of the standards replaced by this standard are as follows: GEB/T 303-1082; GR/7 36931086.1 Scope
High-pressure seamless steel pipe for diesel engine
GB/T3093—2002
This standard specifies the ordering content, classification code, size, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of high-pressure seamless steel pipe for diesel engine. This standard applies to the cold-drawn seamless steel pipe for the manufacture of high-pressure oil pipes for diesel engine injection systems. 2 Normative references
The clauses in the following documents are generally cited
by recommendation
. For dated references, all subsequent amendments to the subject
documents (excluding errata and revisions) are not applicable to this standard. However, parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For references to GB/T.222
GB/T223
by date
Its latest version applies to this standard, sampling method for chemical analysis of steel and allowable deviation of chemical composition of finished products, determination of chromium content by carbonyl dimerization, chemical analysis method of iron and alloys, GB/T223a, GB/T2232, sodium carbonate separation, flame atomic force spectrophotometry, determination of copper content ( eqvISO/DIS Chemical analysis methods for steel and alloys Determination of quantity by atomic absorption spectrophotometry (eqvISO/DIS Chemical analysis methods for steel and alloys Chemical analysis methods for steel and alloys GB/T223 Chemical analysis methods for steel and alloys CB/T22368 Steel and alloys Steel and alloys 223.
GB/T228
GB/T233
GB/T241
GB/T2102
GB/T2975
GB/T6397
GB/T7735
GB/T17395
3 Ordering Content
Analysis Method
Peroxyacid Dehydration Gravimetric method for determination of silicon content
Determination of phosphorus content
Butyl acetate for photometry
Sodium potassium peroxide) Photometric determination of manganese content (neISOR629) Potassium iodate titration to determine sulfur content
Tube type internal repair
After combustion in a tube furnace
Gas volumetric activity to determine carbon content
Method (neqIsO1143, ISO6892)||t t||Metal tensile test method
Metal forging test method
Compression test method
Steel sound collection, packaging, marking and quality certificate and
Mechanical properties sample sampling location and sample preparationeqVISG377) 2 Tensile test specimen (1e
6892)
Eddy current flaw detection method for steel pipes (egISO0804) Dimensions, shape, quantity and allowable deviation of seamless steel pipes (reuisO1127.neqISO4200,neqISO5252) The contract or order for ordering according to this standard shall include the following contents: Standard number:
Product name:
Brand:
Delivery weight (quantity):
Dimension specifications;
GB/T30932002
Precision grade:
I) Epidemic! Test (if required, then 6.5.2), classification, code
Steel pipes are divided into four categories according to size and accuracy:
Grade A accuracy is used for general diesel engines and maintenance piping: Grade C. Grade D accuracy: used for oil engine injection test platforms: Grade D accuracy: special requirements,
Dimensions, shape, weight and allowable deviations
5.: Dimensions and allowable deviations
5. 1. The outer diameter and inner diameter of the steel pipe are shown in the table, and the radius of the small bend is shown in Table 1. Note that the supply and demand process of steel pipes with outer dimensions is coordinated. Table 1 Outer and inner diameter dimensions and recommended minimum bending radius of steel pipes Note: Meaning indicates steel pipe specifications: Outer diameter DX Inner diameter 1.2 For the outer and inner diameter allowable deviations of steel pipes, see Section 2, 7.3. Table 2 Outer and inner diameter allowable deviations of steel pipes Accuracy grade All outer diameters New outer diameters Allowable deviation of outer diameters 2:13 .. th Unit: meter Unit: mil Allowable deviation of inner diameter —0:10 - 10 GB/T 3093.---2002
5-1-3 The difference between the maximum and minimum wall thickness of steel pipes should not exceed 2% of the nominal wall thickness, and the difference between the maximum and minimum wall thickness of steel pipes should not exceed 8% of the nominal wall thickness. When ordering, steel pipes with B, C, and I grades of precision should be specified in the contract. Grade A precision steel pipes should be delivered.
5.2 Length
5-2.1 Normal length
Steel pipes are delivered in normal lengths, and the general length is 15m:m~60mtm1. After negotiation between the supply and demand parties, the delivery of batch pipes is allowed to be no more than the order quantity%. The length is not less than 800m. 5-2.2 Fixed length and multiple length
The fixed length of the steel diameter and the total length of the steel diameter shall be within the normal length range. The allowable deviation of the total length is 15 mm. Each multiple center shall also reserve a cutting margin of
5mm~nm. Fixed length and multiple length shall be indicated in the order. 5.3 Electrical
The steel pipe shall have a safe straightness after straightening. 5.4 End shape
The end faces of the two ends of the steel rod shall be straight with the axis of the steel pipe, and the cutting angle shall not be greater than 2.5 αm, and the cut burrs shall be removed. 5. 5. Delivery quality
5. 5. 1 The delivery quality of the steel pipe shall be in accordance with the provisions of GB/17355. The density of the steel is calculated at 7.85 kg/ltm. 5.5.? According to the requirements of the purchaser, after negotiation between the purchaser and the purchaser, and within the contract period, the actual weight and theoretical weight of the delivered steel pipes will be allowed to deviate as follows:
Single hook pipe: ±10%;
Steel pipes with a minimum of 10t per batch: 5%.
5.6 Marking example
Made of 23A steel with an outer diameter of G mm, an inner diameter of 2 mm,Grade B precision; usually the diesel engine cold drawn high pressure seamless steel pipe with good quality delivery is marked as: Www.bzxZ.net
Steel pipe technology 25A-D6Xd2B—GB/T3053—20026 technical requirements
6.1 Grade and chemical composition
Steel grade and chemical composition (melting and grinding should meet the requirements of Table 3 Table 3 Steel grade and chemical composition
Statistical data
t:2026
Chemical composition (weight fraction 1%
u. n? -- U. 1su. Ir--..
.+k. +.. -- 0. 6-
0. 17 -- 0. 230. 17 ~c. 37b. 8~0, 650.20
. f.7--
Not more than
When the purchaser requires the analysis of the finished product, it shall be included in the contract. The allowable deviation of the chemical composition of the finished steel pipe shall comply with the provisions of (12
5.2 Manufacturing method
5.2.1 Steel shall be smelted by electric or oxygen conversion. 5.2.2 The steel pipe is made by cold drawing machine sewing method. 5.3 Delivery status
After the final cold treatment, the steel pipe is changed to the old state by heat treatment. 3
GB/T3093—2002
6.4 Mechanical properties
The mechanical properties of the steel pipe in the delivery state shall comply with the provisions of Table 4. Table 4 Mechanical properties of steel pipe
Service point c
6.5 Process properties
6.5/1 Cold forging test
Tensile strength./MP
3 35~470
390--540
170630
The sample length should be two-piece
The steel pipe should be cold-forged
No depth
hydraulic test is allowed on the outside
According to the requirements of the buyer
, cracks and cracks
The full contract
steel can be
not less than
elongation
The pipe section is cold-top plated to half the original sample height. After the test
Test.
Calculate the maximum test value of the hydraulic test||tt ||Pressure-free
The test pressure is 20MPa! During the test, the pressure stabilization time should be no less than 10s. Under the test pressure, the steel pipe shall not leak or deform. Where:
By supply and demand
GB/T7735
6.6Surface quality
Unit is megapascal (MPa);
Thickness, unit is millimeter (mm);
is the minimum value of tensile strength specified in Table 4, unit is millimeter (mm).
Contractor and indicate in the contract, full flow
A-level hole can be used.
The inside and outside of steel, etc. have
thickness and engraving
Megapascals (MPa):
Deep flaw inspection should replace hydraulic inspection. Eddy current flaw detection should be used to inspect the burrs, rust and loose
Oxide scale
It is allowed to have an oxide film and pit indentations of no more than 0.08mm (the inner surface of Grade B and Grade C precision steel pipes should be no more than
.05mm) that do not hinder the surface quality inspection.
Test method
7.1 Dimension measurement method
Steel pipes should be inspected for size one by one using measuring tools that meet the accuracy. The outer diameter shall be checked with an outside micrometer, and the inner diameter shall be checked from both ends of the steel pipe with a plug gauge. The length of the plug gauge should be no less than 20 mm, and the length shall be checked with a steel tape measure. 7.2 Surface quality inspection method
The surface quality of the steel pipe shall be visually inspected one by one under sufficient lighting conditions. The depth of surface defects of the steel pipe shall be determined on the cross-sectional specimen under a magnification of at least 50 times. The inspection of the inner surface state can be carried out by taking two steel pipes from each batch, and cutting a pipe section from each batch for longitudinal section specimen.
7.3 Inspection items
The inspection items, test methods and sampling quantity of steel pipes shall comply with the provisions of Table 5. 4
Inspection items
Chemical composition
Tensile test
Cold top plating test
Hydraulic test
Eddy current flaw detection
Inspection rules
Inspection and acceptance
Table 5 Inspection items, test methods and sampling quantity for steel pipes Sampling quantity
One sample for each heat
One sample for each batch of two steel pipes
Each One is taken from each of the two steel pipes in each batch. In each batch of steel pipes, the inspection and acceptance of any two steel pipes shall be carried out by the supplier. The number of steel pipes in each batch shall be the number of samples taken by the supervision department. Each batch shall be inspected by the same department. Medium-sized, medium-sized, F400 or weight not more than 2 ||The sampling quantity of various
energy inspections of each batch of steel pipes shall comply with the SSE
Re-inspection and judgment rules in Table 5
The re-inspection and
rules of steel pipes shall comply with the provisions of CB/T
2102
Packaging, marking and quality
Rhombus cans with anti-rust oil
Steel pipes should be coated with oil
Except for the provisions of Article 9.1
Test methods
GB/T223
GB/T228
GB/T233
GB/T241
GB/T7735
GB/T3093—2002
Sampling method
GB/T222
GB/T2975
GB/T6397
Specifications and steel pipes with the same processing system. The same
packaging, marking and quality certificate shall comply with the provisions of the Ministry/2102
GB/T 3093-2002
China A Da H
National Hua Ya
High-pressure seamless steel pipe for diesel engine
GB/T 3393-- 2002
Published by China Standards Publishing House
No. 16, Sanyuaner Street, Xiaxingmenwai, Beijing
Zip Code: 100043
Tel: 6852394618517548
Printed by China Standards Publishing House, Xinhua Bookstore, Beijing Publishing House, 10 copies, 880×12301/16, 4 copies, 14 copies, first edition, February 2002, 200:2, first printing, 1-15CC||t t||Price*0.CO yuan
Book number: 1550: 119601
Website bzcbs.con
Double exclusive rights
Infringement must be investigated
Report phone: 010) 68633533
Wanxie Zhi 17bzw.cn Crisp Dai brown sauce species demon Dai Yan Hong Shuai family 5 lakes
17izw.com Crisp Dai peak
Quiet species bee parrot boom
1 Le Ying 60 wings
2002601//MP
335~470
390--540
170630
The sample length should be two-piece
The steel pipe should be cold-forged
No depth
hydraulic test is allowed on the outside
According to the requirements of the buyer
, the cracks and cracks
streaks can be specified in the contract
steel can be cold-top plated to half the original sample height. After the test
, the maximum test pressure of the hydraulic test is 20MP Crazy! During the test, the pressure stabilization time should be no less than 10s. Under the test pressure, the steel pipe shall not leak or deform P
Where:
By supply and demand
GB/T7735
6.6Surface quality
Unit is MPa;
Thickness, unit is millimeter (mm);
is the
diameter of the minimum tensile strength specified in Table 4, unit is millimeter (mm).
Contractor and indicate in the contract, full flow
A-level hole can be used.
The inside and outside of steel etc. have
thickness and engraving
Megapascals (MPa):
Deep flaw inspection should replace hydraulic inspection. Eddy current flaw detection should be used to inspect the burrs, rust and loose
Oxide scale
It is allowed to have an oxide film and pit indentations of no more than 0.08mm (the inner surface of Grade B and Grade C precision steel pipes should be no more than
.05mm) that do not hinder the surface quality inspection.
Test method
7.1 Dimension measurement method
Steel pipes should be inspected for size one by one using measuring tools that meet the accuracy. The outer diameter shall be checked with an outside micrometer, and the inner diameter shall be checked from both ends of the steel pipe with a plug gauge. The length of the plug gauge should be no less than 20 mm, and the length shall be checked with a steel tape measure. 7.2 Surface quality inspection method
The surface quality of the steel pipe shall be visually inspected one by one under sufficient lighting conditions. The depth of surface defects of the steel pipe shall be determined on the cross-sectional specimen under a magnification of at least 50 times. The inspection of the inner surface state can be carried out by taking two steel pipes from each batch and cutting a pipe section from each batch for longitudinal section specimen.
7.3 Inspection items
The inspection items, test methods and sampling quantity of steel pipes shall comply with the provisions of Table 5. 4
Inspection items
Chemical composition
Tensile test
Cold top plating test
Hydraulic test
Eddy current flaw detection
Inspection rules
Inspection and acceptance
Table 5 Inspection items, test methods and sampling quantity for steel pipes Sampling quantity
One sample for each heat
One sample for each batch of two steel pipes
Each One is taken from each of the two steel pipes in each batch. In each batch of steel pipes, the inspection and acceptance of any two steel pipes shall be carried out by the supplier. The number of steel pipes in each batch shall be the number of samples taken by the supervision department. Each batch shall be inspected by the same department. Medium-sized, medium-sized, F400 or weight not more than 2 ||The sampling quantity of various
energy inspections of each batch of steel pipes shall comply with the SSE
Re-inspection and judgment rules in Table 5
The re-inspection and
rules of steel pipes shall comply with the provisions of CB/T
2102
Packaging, marking and quality
Rhombus cans with anti-rust oil
Steel pipes should be coated with oil
Except for the provisions of Article 9.1
Test methods
GB/T223
GB/T228
GB/T233
GB/T241
GB/T7735
GB/T3093—2002
Sampling method
GB/T222
GB/T2975
GB/T6397
Specifications and steel pipes with the same processing system. The same
packaging, marking and quality certificate shall comply with the provisions of the Ministry/2102
GB/T 3093-2002
China A Da H
National Hua Ya
High-pressure seamless steel pipe for diesel engine
GB/T 3393-- 2002
Published by China Standards Publishing House
No. 16, Sanyuaner Street, Xiaxingmenwai, Beijing
Zip Code: 100043
Tel: 6852394618517548
Printed by China Standards Publishing House, Xinhua Bookstore, Beijing Publishing House, 10 copies, 880×12301/16, 4 copies, 14 copies, first edition, February 2002, 200:2, first printing, 1-15CC||t t||Price*0.CO yuan
Book number: 1550: 119601
Website bzcbs.con
Double exclusive rights
Infringement must be investigated
Report phone: 010) 68633533
Wanxie Zhi 17bzw.cn Crisp Dai brown sauce species demon Dai Yan Hong Shuai family 5 lakes
17izw.com Crisp Dai peak
Quiet species bee parrot boom
1 Le Ying 60 wings
2002601//MP
335~470
390--540
170630
The sample length should be two-piece
The steel pipe should be cold-forged
No depth
hydraulic test is allowed on the outside
According to the requirements of the buyer
, the cracks and cracks
streaks can be specified in the contract
steel can be cold-top plated to half the original sample height. After the test
, the maximum test pressure of the hydraulic test is 20MP Crazy! During the test, the pressure stabilization time should be no less than 10s. Under the test pressure, the steel pipe shall not leak or deform P
Where:
By supply and demand
GB/T7735
6.6Surface quality
Unit is MPa;
Thickness, unit is millimeter (mm);
is the
diameter of the minimum tensile strength specified in Table 4, unit is millimeter (mm).
Contractor and indicate in the contract, full flow
A-level hole can be used.
The inside and outside of steel etc. have
thickness and engraving
Megapascals (MPa):
Deep flaw inspection should replace hydraulic inspection. Eddy current flaw detection should be used to inspect the burrs, rust and loose
Oxide scale
It is allowed to have an oxide film and pit indentations of no more than 0.08mm (the inner surface of Grade B and Grade C precision steel pipes should be no more than
.05mm) that do not hinder the surface quality inspection.
Test method
7.1 Dimension measurement method
Steel pipes should be inspected for size one by one using measuring tools that meet the accuracy. The outer diameter shall be checked with an outside micrometer, and the inner diameter shall be checked from both ends of the steel pipe with a plug gauge. The length of the plug gauge should be no less than 20 mm, and the length shall be checked with a steel tape measure. 7.2 Surface quality inspection method
The surface quality of the steel pipe shall be visually inspected one by one under sufficient lighting conditions. The depth of surface defects of the steel pipe shall be determined on the cross-sectional specimen under a magnification of at least 50 times. The inspection of the inner surface state can be carried out by taking two steel pipes from each batch and cutting a pipe section from each batch for longitudinal section specimen.
7.3 Inspection items
The inspection items, test methods and sampling quantity of steel pipes shall comply with the provisions of Table 5. 4
Inspection items
Chemical composition
Tensile test
Cold top plating test
Hydraulic test
Eddy current flaw detection
Inspection rules
Inspection and acceptance
Table 5 Inspection items, test methods and sampling quantity for steel pipes Sampling quantity
One sample for each heat
One sample for each batch of two steel pipes
Each One is taken from each of the two steel pipes in each batch. In each batch of steel pipes, the inspection and acceptance of any two steel pipes shall be carried out by the supplier. The number of steel pipes in each batch shall be the number of samples taken by the supervision department. Each batch shall be inspected by the same department. Medium-sized, medium-sized, F400 or weight not more than 2 ||The sampling quantity of various
energy inspections of each batch of steel pipes shall comply with the SSE
Re-inspection and judgment rules in Table 5
The re-inspection and
rules of steel pipes shall comply with the provisions of CB/T
2102
Packaging, marking and quality
Rhombus cans with anti-rust oil
Steel pipes should be coated with oil
Except for the provisions of Article 9.1
Test methods
GB/T223
GB/T228
GB/T233
GB/T241
GB/T7735
GB/T3093—2002
Sampling method
GB/T222
GB/T2975
GB/T6397
Specifications and steel pipes with the same processing system. The same
packaging, marking and quality certificate shall comply with the provisions of the Ministry/2102
GB/T 3093-2002
China A Da H
National Hua Ya
High-pressure seamless steel pipe for diesel engine
GB/T 3393-- 2002
Published by China Standards Publishing House
No. 16, Sanyuaner Street, Xiaxingmenwai, Beijing
Zip Code: 100043
Tel: 6852394618517548
Printed by China Standards Publishing House, Xinhua Bookstore, Beijing Publishing House, 10 copies, 880×12301/16, 4 copies, 14 copies, first edition, February 2002, 200:2, first printing, 1-15CC||t t||Price*0.CO yuan
Book number: 1550: 119601
Website bzcbs.con
Double exclusive rights
Infringement must be investigated
Report phone: 010) 68633533
Wanxie Zhi 17bzw.cn Crisp Dai brown sauce species demon Dai Yan Hong Shuai family 5 lakes
17izw.com Crisp Dai peak
Quiet species bee parrot boom
1 Le Ying 60 wings
2002601/3 Inspection items
The inspection items, test methods and sampling quantity of steel pipes shall comply with the provisions of Table 5. 4
Inspection items
Chemical composition
Tensile test
Cold top plating test
Hydraulic test
Eddy current flaw detection
Inspection rules
Inspection and acceptance
Table 5 Inspection items, test methods and sampling quantity of steel pipes Sampling quantity
Take one sample for each furnace number
Take one sample from each of the two steel pipes in each batch
Each One is taken from each of the two steel pipes in each batch. In each batch of steel pipes, the inspection and acceptance of any two steel pipes shall be carried out by the supplier. The number of steel pipes in each batch shall be the number of samples taken by the supervision department. Each batch shall be inspected by the same department. Medium-sized, medium-sized, F400 or weight not more than 2 ||The sampling quantity of various
energy inspections of each batch of steel pipes shall comply with the SSE
Re-inspection and judgment rules in Table 5
The re-inspection and
rules of steel pipes shall comply with the provisions of CB/T
2102
Packaging, marking and quality
Rhombus cans with anti-rust oil
Steel pipes should be coated with oil
Except for the provisions of Article 9.1
Test methods
GB/T223
GB/T228
GB/T233
GB/T241
GB/T7735
GB/T3093—2002
Sampling method
GB/T222
GB/T2975
GB/T6397
Specifications and steel pipes with the same processing system. The same
packaging, marking and quality certificate shall comply with the provisions of the Ministry/2102
GB/T 3093-2002
China A Da H
National Hua Ya
High-pressure seamless steel pipe for diesel engine
GB/T 3393-- 2002
Published by China Standards Publishing House
No. 16, Sanyuaner Street, Xiaxingmenwai, Beijing
Zip Code: 100043
Tel: 6852394618517548
Printed by China Standards Publishing House, Xinhua Bookstore, Beijing Publishing House, 10 copies, 880×12301/16, 4 copies, 14 copies, first edition, February 2002, 200:2, first printing, 1-15CC||t t||Price*0.CO yuan
Book number: 1550: 119601
Website bzcbs.con
Double exclusive rights
Infringement must be investigated
Report phone: 010) 68633533
Wanxie Zhi 17bzw.cn Crisp Dai brown sauce species demon Dai Yan Hong Shuai family 5 lakes
17izw.com Crisp Dai peak
Quiet species bee parrot boom
1 Le Ying 60 wings
2002601/3 Inspection items
The inspection items, test methods and sampling quantity of steel pipes shall comply with the provisions of Table 5. 4
Inspection items
Chemical composition
Tensile test
Cold top plating test
Hydraulic test
Eddy current flaw detection
Inspection rules
Inspection and acceptance
Table 5 Inspection items, test methods and sampling quantity of steel pipes Sampling quantity
Take one sample for each furnace number
Take one sample from each of the two steel pipes in each batch
Each One is taken from each of the two steel pipes in each batch. In each batch of steel pipes, the inspection and acceptance of any two steel pipes shall be carried out by the supplier. The number of steel pipes in each batch shall be the number of samples taken by the supervision department. Each batch shall be inspected by the same department. Medium-sized, medium-sized, F400 or weight not more than 2 ||The sampling quantity of various
energy inspections of each batch of steel pipes shall comply with the SSE
Re-inspection and judgment rules in Table 5
The re-inspection and
rules of steel pipes shall comply with the provisions of CB/T
2102
Packaging, marking and quality
Rhombus cans with anti-rust oil
Steel pipes should be coated with oil
Except for the provisions of Article 9.1
Test methods
GB/T223
GB/T228
GB/T233
GB/T241
GB/T7735
GB/T3093—2002
Sampling method
GB/T222
GB/T2975
GB/T6397
Specifications and steel pipes with the same processing system. The same
packaging, marking and quality certificate shall comply with the provisions of the Ministry/2102
GB/T 3093-2002
China A Da H
National Hua Ya
High-pressure seamless steel pipe for diesel engine
GB/T 3393-- 2002
Published by China Standards Publishing House
No. 16, Sanyuaner Street, Xiaxingmenwai, Beijing
Zip Code: 100043
Tel: 6852394618517548
Printed by China Standards Publishing House, Xinhua Bookstore, Beijing Publishing House, 10 copies, 880×12301/16, 4 copies, 14 copies, first edition, February 2002, 200:2, first printing, 1-15CC||t t||Price*0.CO yuan
Book number: 1550: 119601
Website bzcbs.con
Double exclusive rights
Infringement must be investigated
Report phone: 010) 68633533
Wanxie Zhi 17bzw.cn Crisp Dai brown sauce species demon Dai Yan Hong Shuai family 5 lakes
17izw.com Crisp Dai peak
Quiet species bee parrot boom
1 Le Ying 60 wings
2002601/
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.