This machine is suitable for liquid or paste stuff, such as ... one step. Time and film saving.· The temperature is under independent PID control, more suitable for different packing materials.· Optional device: ... controllerYatai, Shanghai5Proximity sensorRoko, Taiwan6Photo sensorJulong, China7Static relaySchneider8SwitchPeople electric, Shanghai Automatic Sealing Liquid/Paste Packing Machine