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International Standard Category: Bolts, screws, studs

GB/T 6188-2000    Hexalobular internal driving feature for bolts and screws
螺栓和螺钉用内六角花形 ;
Category No.:21.060.10 Valid Status:superseded
Issued Organization:CSBTS Issued Date:2000-09-26
Implemented Date:2001-2-1 Abolished Date:
Superseded Standard.:GB/T 6188-2008 Hexalobular internal driving feature for bolts and screws
Superseded Date:2009-2-1
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