Damper: both gas flow regulating button and wind board are high grade PP material, connected with 304 stainless steel bar, manually adjust the outside valve knob, control air flow.

气流调节阀：气流调节扭与挡风板均为高密度PP材质，用304不锈钢方棒连接，手动调节外部阀门旋钮，控制气流量。

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Clean, adjust relief valve -, check for worn and dirty valve.

清洁，调节安全阀，检查是否有磨损和肮脏的阀门。

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Imported high quality safety valve, precise control valve to adjust pressure.

进口优质安全阀，精确阀控调节压力。

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