... quick pumping speed. the cycle of short. high efficiency and easy operation, low energy consumption and performance advantages of stability. Applied industry :Widely ... heel,ABS,PS,PP,PC,PVT,PET,nylon,metal,Boil,glass,ceramics,TPU,etc. Electroplating effects :general electroplating-face, dumb ... systemDiffusion pump +Roots pump +Mechanical pump +Holding pump horizontal vacuum coating machine