1:Material for stainless steel,alloy steel and carbon steel etc 2:By lost wax casting process 3:CNC machining and X-ray inspection report. Details: 1:We do these kinds of parts as OEM service 2:Its use on industry area We are middle sized precision metal casting factory and mainly do products according to the requirements of our customers like drawings or the sample. You are welcome to sent us your inquiry to test our price and quality. Contact Sweety zhang