... &superior quality 2advanced equipment&skilled worker 2011 OEM precision machining stainless steel flange1:OEM service available2:Material: aluminum,grey iron, ductile iron ... , carbon iron,zinc ,bronze, copper, brass,stainless steel3:Standard: ISO, ANSI, ASTM,, JIS, DIN, GB4:Weight Range ... : 0086-411-83701520Fax:0086-411-83704610 2011 OEM precision machining stainless steel flange