... .surface treatmentBlack vanished, PP,PE,3PE7.Payment TermT/T, L/C8.Delivery Time30 days after we received the deposit or ... requirements10.MaterialQ235B,Q345B,X46,X52,X60,X70,X80 etc11.UsageFor line pipe in petroleum and natural gas , water and gas, ... . Also for chemical industry, building structure and pile driving, etc.12. Export to these CountriesCanada, USA, Peru, Chile, Colombia, Brazil, ...