... diameter In bulk packing, or as customized5.surface treatmentBlack vanished, PP,PE,3PE7.Payment TermT/T, L/C8.Delivery Time45 days ... requirements10.MaterialQ235B,Q345B,X46,X52,X60,X70,X80 etc11.UsageFor line pipe in petroleum and natural gas , water and gas, mineral ... diameter In bulk packing, or as customized5.surface treatmentBlack vanished, PP,PE,3PE7.Payment TermT/T, L/C8.Delivery Time45 days ...