... ASME,DIN,JIS Certificate:API,ISO,CCS SCH 40 steel tube ProductionSteel pipeTypeSeamless and ERWSize1/2" To 24"Wall ... A53/A106,ASTM A179,API 5L X42/52/60Alloy Steel: ASTM A213,A335,JISG3458/G3462/3467,DIN17175-79Surface ... 3PE coating, epoxy coating.PackingPlastic pipe cap, plastic bag, steel strips bundledApplicationsPetroleum,chemical,power,gas,metallurgy, shipbuilding, construction, etcMin ...