... Pipe, Special-shaped Pipe, Fitting stainless steel tube Feature:1) Round Pipe ( stainless steel tube )Outer Diameter: 6mm, 8mm, ... 4mm, 159mm, 168mm, 203mm, 219mm2) Square Pipe ( stainless steel tube ) Size: 10X10mm, 12X12mm, 12.7X12.7mm, 15X15mm, 17X17mm ... 60X60mm, 70X70mm, 80X80mm, 90X90mm, 100X100mm3) Rectangle Pipe ( stainless steel tube ) Size: 10X15mm, 11X23mm, 12X24mm, 13X25mm, 10X30mm, 13X28mm, ...