Natural High Carbon Mattress Spring Steel Wire
Use for making compression spring, extension spring, torsion spring , mattress spring , flat control cable , etc.
Diameter:0.20---12.0mm
Wire Rod Material: 45# ,60#, 65# ,65Mn, 70#,72A,72B, 80#, 82B
Standard: DIN17223, EN10270-1, JIS G 3521, ASTM A227 , GB4357-89
Tensile Strength: B,C grade / SM,DM;SH,DH/ SWB, SWC
Surface: Smooth , Lead Patented heat treatment and Phosphated.
Certificate: ISO9001 , ISO14001 , SGS