pipe fittings screw pipe fitting ISO9001: 2000 Approved Process: precision casting & Tooling Standard: JIS, DIN, ASTM,BS OEM pipe fittings screw pipe fittingwe can ... cast iron and so on3.Process: lost wax process, soluble glass process , silicon process casting4.Weight range: 0.02 to 30kg5 ... treatment,polishing,machining,machining center,plating,Heat Treatment,ect. pipe fittings screw pipe fitting