1065 spring steel strip thickness: 0.05~45mm width:30~ ... :2B BA 6K 8K HLapplication range: High-strength parts, spring building structure, bus, car wheels, cover platerstensil strength:1100 ... to 2000 N/mm2Tempered spring steel stripMaterial grade: c50,c55,c60,c67,c70,c75 ... worthy Application: metal parts,construction tool,agricutural tool,roller shutter spring