... 3. ISO9001 4."Excellent Supplier of Sulzer" : High manganese steel castings:MaterialHigh manganese steel castingsProcessInvestment casting,sanding castingCertificateISO9001:2008StandardASTM or as your requirementSpecification drawings Pro/E ... , numerical lathe, all types of lathe.Surface finish process polishing, sand blasting, t6-heat treatment, painting, powder coating, anodizing, electroplating, ...