... Structure Pipe ,Pipe of Pipelines Code NO.VarietyNormal Steel GradeStandard NO.1Structure pipe10,20,35,45,Q235 ... production of various cold-drawing and hot-rolling seamless steel tubes of Φ8-159×1-20mm in thickness ... than 200,000 tons. The Strong Eagle series seamless steel tube has been awarded with the Household Name ... with 80,000mt all kinds of seamless pipes (approx. 4000 sorts). seamless steel pipes