... , API 5L, ASME B36.10M---1996, DIN2605/2615/2616, JIS P2311/2312MetrialCS, SS, AS, Nickel AlloySurface treatment:Transparent oil, ... A234 WPB WPC A105 A106 A53 A283-D API5L B A671-CC-70 A515-50 A135-A A179-C ... which locates in Dongli District, Tianjin City, China. It’s only 10 kilometers away from Tianjin airport and 50 kilometers ... A234 WPB WPC A105 A106 A53 A283-D API5L B A671-CC-70 A515-50 A135-A A179-C ...