... for tube making machine. die set,pipe roll set. Roller and mould, welded pipe roller ... Precise with only 0.05mm tolerance. 3. With CNC machine. 1. Description: Roller and mould, welded pipe roller, ... quality tool steel Cr12mov as raw materials, mouild steel Cr12mov material set high wear resistance, toughness, resistance to high pressure, high ... angle does not exceed ±0.05mm. Roll set for tube machine