... -63HRC1. Description: Roller and mould, welded pipe roller, stainless steel pipe mould for round/square/shaped tube.2. Precise with only 0.05mm ... , flat tube, oval tube, fan-shaped tube, polygonal tube, single and double groove pipe, tube frame, special-shaped mould, etc.5. Specification range ... on the angle does not exceed ±0.05mm. High precision pipe forming mold