... to Japan,Indonesia,America,Angola,Dubai,Germany Black Steel Pipe ASTM A106 Chemical Requirements(%)(≤)GradeCSiMnPSCrMoNiCuVA0.250.100.27- ... C, ASTM A53A, B, ST37.2, ST.......(5)Type: Seamless carton steel for high temperature pipeline(6)Schedule: SCH10, ... with steel strips, Wrapped PP bag prevent from moisture(13)Certificate: ISO9001:2008, API 5L certificate, SGS certified factory, Hebei Famous Brand ...