... X52, X56, X60, X70, X80,etc6.Brand Namezhongshun7.Usage of the pipeFor oil pipe, casing, line pipe in petroleum and natural gas, structure ... pipe, water and gas, also for chemical ... .10.Payment TermsT/T ,L/C11.Surface TreatmentBlack Vanished ,PP,PE,3PE, Galvanized etc12.Export to these countriesCanada, USA, Peru, ...