allo tool steel 4Cr5MoSiV H11 1.2343 Quality standard: GB,AISI,ASTM,DIN,JIS. 1. Quality standard AISI, GB,2.Delivery as clients' requirements; on time delivery.3. The steel is of good tenacity, heat intensity, heat weary property and abrasion.4. The steel is used to make casting die and hot extrusion die , tool for punching, mandril, press machine of forging die and plastic mould, etc.5.Because ...