MATERIAL: Carbon steel, alloy steel and stainless steel. Size: 1/8'' to 4'' Pressure: 2000LB, 3000LB, 6000LB Elbows, tees, reducers, caps, bends, nipples, socket olets, coupling, union and flanges MATERIAL: Carbon steel, alloy steel and stainless steel. Size: 1/8'' to 4'' Pressure: 2000LB, 3000LB, 6000LB for threaded fittings. 3000LB, 6000LB, 9000LB for socket fittings. CE and certification: API, ...