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| International Standard Category: Materials for aerospace construction in general |
QJ A 502-2001 QJ A 502-2001 Specification for Aluminium Alloy and Copper Alloy forgings
铝合金、铜合金锻件技术条件;
| Category No.: | 49.025.01 | Valid Status: | valid |
| Issued Organization: | Issued Date: | ||
| Implemented Date: | 2002-2-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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