With multiple security protection: stress testing, automatic extinguished shutdown, multilevel exhaust gas concentration, alarm functions.
具有多项安全保护：压力检测，自动熄灭关机，多级排风，燃气浓度报警等功能。
With multiple security protection: stress testing, automatic extinguished shutdown, multilevel exhaust gas concentration, alarm functions.
具有多项安全保护：压力检测，自动熄灭关机，多级排风，燃气浓度报警等功能。
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