... 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 ... Japan, high precise; 10 years experience in RD, the fingerprints, mechanical pattern, on the corner, concave angle phenomena, and to form ...