ASTM F568M bolt processing technology

December 19, 2023

First, the head molding process

Second, the thread processing technology

Third, the heat treatment process

Fourth, the tempering test process

Fifth, the surface treatment process

Keychain Light,Rechargeable Keychain Light,Small Keychain Light,Button Keychain Light

Cangnan Younglite Electrical Co., Ltd. , https://www.younglitetec.com