ERW Square/Rectangle Tube Mill a.Square Tube: 200*200- 450*450mm b.Rectangle Tube: ... mahcine, shear&welder, horizontal accumulator, forming&sizing mill, HF induction welder, cooling device, seam bead trimmer, annealer, pullingout device, cutoff machinery, conveyer ... customer's trust. Easily Change Size ERW Square/Rectangle Tube Mill