... Elbow,Tee,Reducer,Cap,Cross,bend2Size1/2''--72''(Seamless :1/2''--24'',Butt Welding:26''--72'')3MaterialCarbon steel,Stainless steel,Alloy ... WP304L/316L/321H,A182 F304HMTP316L,A358 etc5TechnicsPushing,Forged,Pressing,Cold Drawn,Casting,etc6ShapeEqual,Round,Reducing7ConnectionRF, ... 3. Boiler Pipe 4. Petroleunm and natural gas industry 5. Chemistry industry 6. Electric industry ANSI alloy steel pipe