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Chinese National Standard Category: Cold processing technology

English Title: Machining Allowance and Dimension Tolerance of Die Forgings on Hammer
Chinese Title: 锤上模锻件机加工余量与尺寸公差
Standard No.: QJ 503-1989
Category No.: V18
Issued by:
Issued on: 1989-02-14
Implemented on: 1989-10-20
Status: valid
Superseded by:
Superseded on:
Abolished on:
Superseding:QJ 503-1967
Word Count:12000 words
Similar Standards: QJ A 762-1998   GB/T 43376-2023   GB/T 38929-2020   GB/T 38825-2020   HB/Z 223.22-2005   QJ A 782-2005   HB/Z 170-2005   HB/Z 223.7-2003   HB/Z 223.3-2003   HB/Z 223.2-2003   HB/Z 223.21-2003   HB/Z 223.11-2003   HB/Z 223.15-2002   HB/Z 223.19-2002   HB/Z 223.17-2002   HB/Z 223.20-2002   HB/Z 223.16-2002   HB/Z 223.18-2002   HB/Z 326-1998   HB/Z 223.13-1998  
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