Constant temperature heating plate, stable temperature: 50~260C. 1) Aluminum shell. PTC heater ... , liquid warmer, coffee warmer, polymer press-coating heater, hot glue gun, chocolate extruder. For details of liquid heater, read another page ... , read 3w. tiancheng-ptc.com. 1) After switching on, the heating power is large, and then decrease, finally it become steady ...