... : 0.6-25mm 3) Reprocess: Perforation, painting, cutting. stainless square steel tube/pipe. As the profeesional steel pipes and pipe fittings manufacture ... ,63,76,88.9,102,114,133,141,159,2192)Square pipes - Outside dimensions(mm) : 10x10,12x12,15x15,17x17,18x18, ... ,28x28,30x30,36x36,38x38,40x40,48x48,50x50,60x60,70x70,80x803)Rectangular pipes - Outside dimensions(mm) : 20x10,23x11,24x12,25x13,28x13, ...