By dual-loop two-level vacuuming assisting by roller extruding,draw out the air from center to the edges quickly,hence assures good screen dots reproduction.

• 采用双回路两级抽真空，辅助辊排气装置，并由中央向四周扩散的高效抽气系统，能彻底保证晒版网点有更好的表现。