... last at most 60 seconds,aeration speed of up,down chamber can be adjusted between 0-50L/ ... time is ≤50 seconds.The adjustment of up chamber airbag aeration pressure is between 0--1 ... .Roof cover stable and adjust rise and set,keep parallel with heating plate.After finishing ... set of data(setting temperature,hot oil temperature,workbench temperature,vacuum of pumb,vacuum of up chamber,vacuum of down ...