... film.5.Time running reduce crystallization of roller surface, and effectively activate circulation system .6.Independent design of rear ... not produce the water mark9.Microcomputer program control, stable and reliable.10.Large digital display panel, the atmosphere, concise, ... on ,you can read various data , check and adjust, clear, simple and easy.parameters: Film SizeMinimum 60×100mmMaximum 430×∞ ...