ASME B16.11 Socket fittings,casing coupling,alloy pipe nipple,flange
Seamless line pipe,API 5L GR.B,X52,Spiral steel pipe API 5L,,LSAW pipe,Alloy steel pipe, ASTMA213,ASTMA335,boiler tube ASTMA179,Low temperature pipe ASTMA333GR.6,Flange ASME B16.5,Butt welding fittings,ASME B16.9,Sockets,Thread fittings,Couplings,Nipples