(1) excavator casting parts (2) Passed ISO: 9001-2000 . (3)Wax and send casting . excavator casting partsCATERPILLAR E200B, E312, E315, E320, E325, E330, E345, E350, E355 ... weldingDipping Sand coatingShell makingDewaxing Cutting and CleaningHeat treatmentPainting Packing .Quality: Adopt manufacturing process of investment casting , Coated sand, and Resin-bonded sand , technology of ...