... Specification range for square pipe: F10*F10-F300*F300. 1. Roller and mould for round pipe, square pipe, shaped pipe, etc ... .05mm tolerance. 3. With CNC machine. 1. Description: Roller and mould, welded pipe roller, stainless steel pipe mould for round/square/shaped ... -shaped tube, polygonal tube, single and double groove pipe, tube frame, special-shaped mould, etc.3. Specification range for round pipe ...