Pipe Die Set for Stainless Steel Pipe Making Machine. Roller and mould, welded pipe roller, stainless steel pipe mould for round/square/shaped ... tube. 1. Roller and mould for round pipe, square pipe, shaped pipe, etc. 2. Precise with only 0.05mm ... -shaped tube, polygonal tube, single and double groove pipe, tube frame, special-shaped mould, etc.3. ... angle does not exceed ±0.05mm. Pipe Die Set