... -Sch160,XXS,XS,STD Standard: . ANSI. JIS. DIN,GB alloy steel pipe 0gRmO910 ; alloy pipeSize1/2"-24Wall thicknessSch10-Sch160XXSXSSTDStandardAPI,ASME, B36.10M ... bundledSurface treatmentblack rust-proof oil, transparent oil, hot galvanizing, 3PE,epoxy coatingApplications rangePetroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etcMin ...