... PU foam thermal insualtion layer, weighing system, diaphragm vacuum pressure gauge on pot cover, sucking filter, breather,pressure ... stainless steel,Stainless steel platform with ski-resistance board,Stainless steel rail5Water or oil phase pot (stainless ... seal7Vacuum systemVacuum pump, buffer tank, one-way valve, vacuum pipe, valve8Control systemElectrical cabinet,electric appliance,inverter, temp. ...