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International Standard Category: Nuts

GB/T 923-1988    Acorn nuts
盖形螺母 ;
Category No.:21.060.20 Valid Status:superseded
Issued Organization:China Machinery Industry Federation Issued Date:1988-06-24
Implemented Date:1989-7-1 Abolished Date:
Superseded Standard.:GB/T 923-2009 Acorn hexagon nuts
Superseded Date:2010-3-1
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