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International Standard Category: Copper and copper alloys |
Category No.: | 77.120.30 | Valid Status: | superseded |
Issued Organization: | SBTS | Issued Date: | 1992-01-01 |
Implemented Date: | 1993-6-1 | Abolished Date: | |
Superseded Standard.: | YS/T 551-2006 Ground brass rods |
Superseded Date: | 2007-9-29 |
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