... ,Impact Test,Flaring Test,Corrosion Test,stainless steel 201 tubesAvailable pipes & tubesStyle (Round / Oval / Square / Rectangular / Hexagon ), O.D range ... -4-4 / S44735, ASTM A 269specialized in stainless steel pipes online for many years in China.Standard:Strictly follow the ... ,36x36,38x38,40x40,48x48,50x50,60x60,70x70,80x80 3)Rectangular pipes - Outside dimensions(mm) : 20x10,23x11,24x12,25x13,28x13 ...