... manufacture with favorable price and excellent quality,pls trust us. Oil steel tubeWe are the manufacture with favorable price and excellent ... ,X80,N80,L80,J55,K55,P110,H40Size: from 1/4" to 28", OD from 13.7 mm to 711.2 mm Wall ... Thickness From 1 mm to 80 mm Schedule: SCH40, STD, SCH80, XS, ...