... die set,pipe roll set. Roller and mould, welded pipe roller, stainless steel pipe mould for round/square/shaped ... welded pipe roller, stainless steel pipe mould for round/square/shaped tube.2. Pipe mould: steel tube, plum ... round pipe: 5-325mm.4. Specification range for square pipe: F10*F10-F300*F300.5. Material for ... tolerance of roundness in les than 0.05mm, square tube on the angle does not exceed ±0. ...