... to produce excavator parts. (2) Passed ISO: 9001-2000 . (3)Wax and send casting . Excavator partsCATERPILLAR E200B, E312, E315, E320, E325 ... , Non-ferrous , Ductile cast iron and so on .Process: Wax injection Wax weldingDipping Sand coatingShell makingDewaxing Cutting and CleaningHeat treatmentPainting Packing .Quality ...