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| International Standard Category: Iron and steel castings |
GB/T 17445-1998 Cast grinding balls
铸造磨球 ;
| Category No.: | 77.140.80 | Valid Status: | superseded |
| Issued Organization: | China State Bureau of Quality and Technical Supervision | Issued Date: | 1998-07-30 |
| Implemented Date: | 1999-7-1 | Abolished Date: | |
| Superseded Standard.: | GB/T 17445-2009 Cast grinding balls |
Superseded Date: | 2010-4-1 |
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