... PSL1,GB/T9711.1 3.Material:X42-X80,Gr.B,A252 Gr.3 4.SGS inspection 5.Mill supply ... without caps as per customer’s requirements10.MaterialA53(A,B),Q235B,Q345B,X46,X52,X60,X70,X80 etc11.UsageFor ... , water and gas, mineral slurry. Also for chemical industry, building structure and pile driving, etc.12. Export to theseCountriesCanada, USA ... ,PSL2 , API 5CT, ISO ,CE API 5L Gr.B Spiral Seam Welding Steel Pipe