... efficiency and save a lot of money about raw material 4. Quick, easy replacement of the rollers by user, saving ... Roller, Cooling Roller, ink prooferetc.Max diameter is up to 750 mm, and max length is 6000 mm.Raw material is Carbon steel, ... Ra is up to 0.01, accurancy is 0.001 mm.Heating roller or cooling roller, inner structure, inform temperature. ... tester B. flexo ink tester B flexo ink tester 4