... heating, PU foam thermal insualtion layer, weighing system, diaphragm vacuum pressure gauge on pot cover, sucking filter, breather ... systemMotor & mixing reducer& mechanical seal*1 set, mixing system, mixing shaft, mixing paddle, flow-choke paddle, TEMP. ... seal7Vacuum systemVacuum pump, buffer tank, one-way valve, vacuum pipe, valve8Control systemElectrical cabinet,electric appliance,inverter, temp. ...