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International Standard Category: Bolts, screws, studs |
Category No.: | 21.060.10 | Valid Status: | superseded |
Issued Organization: | China Machinery Industry Federation | Issued Date: | 2008-08-25 |
Implemented Date: | 2009-2-1 | Abolished Date: | |
Superseded Standard.: | GB/T 6188-2017 Hexalobular internal driving feature for bolts and screws |
Superseded Date: | 2018-4-1 |
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