... parts,machinery parts,valve parts,train,craft,doorhandle,construction and so on.11.Surface treatment:polishing,maching,plating, ... Argon arc welding; Sand blasting; Clearing and finishing; Heat treatment; Correction and inspectionweight0.05kg to 50kgMaterialSS:303,304,304L,316 ... , 16MnCr5, 42CrMo4, 35CrMo, 40Cr etcsizeAccording to customers' requirementdesignpacking custom-made pump impeller cd4mcu