HS7-4-2-5 / 1.3246 steel bar 1.Good quality and price for 10 year's experience 2.ISO9001, ISO14001, GB/T28001 Certifications ... and super duplex steel, alloy QT steel, high temperature steel, case hardened steel, Stainless steel, Titanium and its alloy, Die steel ... requirement3. We can work with everything from the raw material to the finished products. We provide smelting, forging, heat treatment, ...