... lot of processing services, including punching, painting, beveling, chamfering are all available for us. With strong technical force, advanced equipment and ... , mm Cut Length, mm Over Under Seamless, hot-finished All sizes 50Seamless, cold-finished Under 50.8 30Welded 50.8 ... 22*4mm, 54*9mm, 57*9mm, 63*4mmBabcock & Wilcox Beijing Company Ltd--ASTM A213 TP347H Stainless Steel Seamless Pipe 16*3mm, 52 ...