1)sch 20 carbon steel pipe 2)OD:1/2"- ... :SSAW,LSAW,Seamless 5)Standard:ASTM,ANSI Type sch 20 carbon steel pipe SizeSeamless Pipe: 1/2”~48”, ... 36mmWall thicknessSGP, STD, SCH40, SCH80, SCH160. XS,XXS and so on.StandardsANSI B16.9 / 16.28, ASTM A53/A106, ... elbows(EL/ES),straight / reducing tee(TC/TR) ,SO ,WN,PL,BL,SW,TH flanges,pipe end cap ... , your inquiries will be reply promptly! sch 20 carbon steel pipe