... parts with different materials,such as brass,aluminum alloy,steel,stainless steel,zinc alloy.4.Our strong R&D and QC department ... saving6.Surface finish process: polishing, sand blasting, chromate plating,power coating and anodizing ,etc.,acoording to customer's requirments. 7.Customer ... detector, Three coordinate surveying instrument, spectrometer, brinell hardness standard machine. alloy dies