JB/T 9937.2-1999 This standard is a revision of ZB J52 006.2-89 "Precision of high-precision machine pliers". During the revision, only editorial changes were made according to relevant regulations, and the main technical content remained unchanged. This standard is part of the JB/T 9937 "High-precision machine pliers" series of standards, which includes the following three parts: JB/T 9937.1-1999 Parameters of high-precision machine pliers JB/T 9937.2-1999 Precision inspection of high-precision machine pliers JB/T 9937.3-1999 Technical conditions for high-precision machine pliers This standard specifies the technical requirements, inspection items and inspection tools for high-precision machine pliers. This standard applies to high-precision machine pliers used in surface grinders, tool grinders and other precision machine tools. This standard was first issued in March 1989. JB/T 9937.2-1999 High-precision machine flat-nose pliers accuracy inspection JB/T9937.2-1999 standard download decompression password: www.bzxz.net

ICS25.060.20
Machinery Industry Standard of the People's Republic of China
JB/T9937.1~9937.3—1999
High Precision Machine Pliers
1599-05-20 Issued
National Bureau of Machinery Industrywww.bzxz.net
2000-01-01 Implementation
JB/T9937.2—1999
4 standard is a revision of the original version of 2B52006.2-89 high precision machine flat pliers. The market demand for high precision machine half-mouth pliers is formulated in accordance with the user's requirements. Its technical content can still meet the current scientific and technological level and adapt to production and use needs: This standard is consistent with the technical content of ZBJ52006.2-B9, and has only been abridged according to relevant regulations. This standard is part of the high precision machine half-mouth pliers series standard. JB T9937 (high precision machine flat pliers) The general title includes the following three parts:
Part I (i.e. JB/T99 37.1): Parameters: Part II (i.e., IR. 37.2): Precision test; Part I (i.e., 9937.3): Technical conditions. This standard replaces ZBJ52006.2-89 from the date of implementation. This standard is proposed by the Technical Committee for Standardization of Metal Cutting Machine Tools. This standard is under the jurisdiction of the Machine Tool Accessories Branch of the Technical Committee for Standardization of Metal Cutting Machine Tools. The negative current unit of this standard: Nanjing Machine Tool Accessories. The starting unit of this standard: Tianjin Machine Tool Accessories! This standard was first issued in March 1989.
Machinery Industry Standard of the People's Republic of China
High Precision Machine Flat-nose Pliers
Precision Test|| tt||This standard specifies the inspection requirements, inspection items and inspection tools for high-precision machine flat-end assembly covers: J9/T9937.2-1999
J2006289
This standard is applicable to surface grinders, high-precision machine flat-end assembly covers used in surface grinders and other precision machine tools. 1 Referenced Standards
The text contained in the following standards is generally cited in this standard and becomes the content of this standard. The versions shown are valid. All standards will be revised. All parties using this standard should discuss the suitability of using the latest version of the following standards: GR/T17421.11998 General Plan for Inspection of Peach Surfaces Part 1 3. ...
Approved by the State Bureau of Machinery Industry on May 20, 1999, implemented on January 1, 2000
JET9937.2—1999
JO/T9937.2-1999
Hubei Creation Russia
JR/T9937.2-1999
“+一
1001>9
008000
Important national
Agricultural Army Program Practice Trust
(Jiang) 1
JB/T9937.2-1999
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