Alloy Pipe,Pipe for chemical fertilizer facility ,Marine Pipe,Casing Pipe,Drill Pipe,Oil Pipe,Structure Pipe ,Pipe of Pipelines Code NO.VarietyNormal Steel GradeStandard NO ... Tube20,35,45,27SiMnGB/T173969American Standard PipeA,BASTM A106 ASTM A5310Casing and TubingJ55,K55,N80,L80,T95,P110, ... more than 200,000 tons. The Strong Eagle series seamless steel tube has been awarded with the Household Name ...