... .forgings, cnc machining, leaking testing The pipe used for high pressure valves.1,Material:Aluminum,alloy steel,brass,gray iron,ductile ... :CNC turning,CNC milling,CNC drilling,CNC boring4,weight:0.2-60kg5,surface treatment:sand blast,electrophoresis,zinc plated6,Heat treatments ... co.,ltdcontact person:AlbertP:86-574-87913612F:86-574-87913610 High Pressure Valve