... Pump ZJ-300,Mechanical pump2X-70,Holding pump2X-8,Pipeline is made of304 Stainless SteelDiffusion pumpKT-800(VAKIA),Roots ... Pump ZJ-600,Mechanical pump2X-70,Holding pump2X-8,Pipeline is made of304 Stainless SteelDiffusion pumpKT-800(VAKIA),Roots ... higher refractivity,firmness,goodcompactness and strong adhesionCoating controlsystem(selected)Quartz crystal film thickness control meter:can store up 1 ...