... mould for round pipe, square pipe, shaped pipe, etc. 2. Precise with only 0.05mm tolerance. 3. With CNC machine. 1 ... provider of technology per crown. CNC machining of Japan, high precise; 10 years experience in RD, the fingerprints, mechanical pattern, on ... , square tube on the angle does not exceed ±0.05mm. Precise roller and mould for stainless steel pipe