... plastic bags, each bundle with two white nylon lifted sling, large diameter In bulk packing, or as customized5.surface treatmentBlack vanished, PP ... .MaterialQ235B,Q345B,X46,X52,X60,X70,X80 etc11.UsageFor line pipe in petroleum and natural gas , water and gas, mineral slurry ... .MaterialQ235B,Q345B,X46,X52,X60,X70,X80 etc11.UsageFor line pipe in petroleum and natural gas , water and gas, mineral slurry ...