we are a professional producer for anneal / hardened & temperated high carbon steel strip materials , main grade Ck45/ck50/ck60/ck62/ck67/ck75/ck95, and now we have new products in 50CrV1, 50CrV2, 50CrV4, and ***** 0.10mm to 2.5mm, width 8mm to 650mm , tolerance +/-0.02mm , width-0 /+0.1mm , hardness , surface , package etc according to buyer requirements !Our material range suitable for tools, spring, automatic clutch patch, rolling shutter door, woodworking band saw, fastener, Motorcycle and Bicycle Chains, various mud trowels, shovels and knives, and so on.