It is made of high quality instruction machine; electric parts, auto ?control with 2 times plus wind, auto time-control and alarm material and so on. it can ensure human safety from dangerous.

• 采用国产的优质指示仪表，国产优质电气元件，自复位透明，阀门带有二次送风开关自动时间宝及报警上等保温材料，保温好。