... Standard:ASTM,ASME,DIN,JIS Certificate:API,ISO,CCS SCH 40 steel tube ProductionSteel pipeTypeSeamless and ERWSize1/2" To 24 ... rust oil, hot galvanized,3PE coating, epoxy coating.PackingPlastic pipe cap, plastic bag, steel strips bundledApplicationsPetroleum,chemical,power,gas,metallurgy, ... , CCS,and ISO9001:2000Productivity200000 ton per yearKeywords: SCH 40 steel tube,carbon steel tube,seamless tube