... 2.Unique design of the immersion oil, low noise 3.Specially desig Bakestar Sheeter :Technical ParameterModelBKQ-520BKQ-620EXT.DIM ... thickness can be pressed the thinnest 1mm,thick and uniform;3)folding design ,reduce space, easy for handling.4)scope of ... switch and the question paper sticks,convenient and quick. 3)another without downtime shift ,automatic press,automatic reciprocating reducedpressure ...