... :1/2''--24'',Butt Welding:26''--72'')3MaterialCarbon steel,Stainless steel,Alloy Steel4Material GradesA234 WPB,A106,A53,API 5L,A105, ... 321H,A182 F304HMTP316L,A358 etc5TechnicsPushing,Forged,Pressing,Cold Drawn,Casting,etc6ShapeEqual,Round,Reducing7ConnectionRF,FF,MF,FMF,SRF,8Wall ... ,China13payment termsT/T L/C at sight14Application 1. Low and middle pressure fluid transportation pipeline 2. Casing Tube ...