... 1.Factory with 10years professional experience 2.EAF/ESR+Forged +annealed +turned/grinded 3.UT : En 1921C/c mould steel HMD1Specialized tool steel ... (7CrSiMnV, CH, CH-1, Cr12MoV, 9Mn2V, CrWMn, GC15, T10A ... 80~450mm Length:2000-13000mm or as required 1) Chemical Composition(GB) %CSiMnCrMoV 0.701. ... , electronic equipment plastic mould HMD-1 die steel