... parts. (2) Passed ISO: 9001-2000 . (3)Wax and send casting . Excavator partsCATERPILLAR E200B, E312, E315, E320, E325, E330, E345, E350 ... .Quality: Adopt manufacturing process of investment casting , Coated sand, and Resin-bonded sand , technology of precision casting to make the products with the ...