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Standard Insuued on: 1994-01 |
Category No.: | QB | Valid Status: | superseded |
Issued Organization: | Issued Date: | 1994-01-06 | |
Implemented Date: | 1994-8-1 | Abolished Date: | |
Superseded Standard.: | QB/T 1901.2-2006 Watch-cases and accessories-Gold alloy coverings-Part 2:Determination of fineness thickness corrosion resistance and adhension |
Superseded Date: | 2007-5-1 |
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