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International Standard Category: Screw threads in general

GB/T 39641-2020    Methods for gaging fastening screw threads by thread indicating gages
螺纹指示量规检测紧固螺纹方法 ;
Category No.:21.040.01 Valid Status:valid
Issued Organization:AQSIQ and SAMR Issued Date:2020-12-14
Implemented Date:2021-7-1 Abolished Date:
Superseded Standard.: Superseded Date:
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