1): Commodity Name: ERW steel pipe 2):DIN,ASTM,EN API 5L,API 5CT 3):OD: ... Namezhongshun7.Usage of the pipeFor oil pipe, casing, line pipe in petroleum and natural gas, structure pipe, water and gas, also for chemical ... TermsT/T ,L/C11.Surface TreatmentBlack Vanished ,PP,PE,3PE, Galvanized etc12.Export to these countriesCanada, USA, Peru, Chile, Colombia, Brazil ...