machining part 1.precise dimension 2 tight tolerance 3 heat treatment,blacked 4 good delivery ... part,copper machining partsWe have milling machine,grinder,lathe with saw,plasma,electric welding machine,dioxo welding machine,cnc processing center ... welding machine availableWe got very professional workersWe are good at precise accuracy parts and ganrantee quality,the price is reasonable Material ...