... 5.Samples ,OEM a Product program and production range1,Accu-roll unit(OD114—273mm. WALL THICKNESS 6-25mm.LENGTH 6-12 ... gradeannual output/t1Oil casing Pipe, joint materialJ55,K55,N80-11000002Oil line pipeB,X42~X60(L245~L415)50003high-pressure boiler tube20G50004lower/medium ... ,40Cr3500010Shipping use of tube320,360,410,4609000 Total 450000component oil line pipe