... tube Manufacture Standard:JIS,GB,DIN,ASTM,EN,AISI welded INOXhigh quality enough nicklelong time cooperate with many ... ,Impact Test,Flaring Test,Corrosion Test,stainless steel 201 tubesAvailable pipes & tubesStyle (Round / Oval / Square / Rectangular / Hexagon ), O. ... 30x30,36x36,38x38,40x40,48x48,50x50,60x60,70x70,80x803)Rectangular pipes - Outside dimensions(mm) : 20x10,23x11,24x12,25x13, ...