Job Recruitment Website - Recruitment portal - Seek the national standard GB4357 for carbon spring steel wire.
Seek the national standard GB4357 for carbon spring steel wire.
National standard GB4357-89 for carbon spring steel wire
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Publication date: February 20, 2005.
Main application: It is used to manufacture springs that are wound and formed in cold state without quenching.
Special purpose steel wire: (YB647 standard)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Publication date: February 20, 2005. Source: Fangchun Information Network.
Special purpose steel wire: (YB647 standard) Group A: 0.2 mm-1.5 mm; Group b: 0.2 mm-1.5 mm; Group c: 0.2mm-1.5mm.
Main uses: manufacturing cold-rolled special springs without quenching.
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