... SSAW,LSAW,Seamless 5)Standard:ASTM,ANSI Type sch 20 carbon steel pipe SizeSeamless Pipe: 1/2”~48”, DN15~DN1200, ... of B/L) Equipment Quality Control: Our products :carbon steel ,alloy steel ,stainless steel pipes and pipe fittingssuch as: long/short radius elbows ... SCH40, SCH60, XS, SCH80., SCH100, SCH120, SCH140, SCH160, XXSFlangeType:welding neck flange, slip-on flange, blind flange,socket weld flange ...