... ISO9001, ISO14001, GB/T28001 Certifications 19MNCR18 stainless steel bar1.Good quality and price for 10 year ... steel, Duplex and super duplex steel, alloy QT steel, high temperature steel, case hardened steel, Stainless steel, Titanium and its alloy, Die steel, etc Plastic Mould Steel ... ,we produce high level special steels .4)Quality Warranty:Yuanfang established top class Physical and chemical testing ...