The utility model can be used for switching two kinds of gas as well as correct adjusting the air input of the primary admission port with the air supply difference, thereby having a simple structure.
它既能用于两种燃气转换使用，又能随气源不同而适当调节一次进气口空气进气量，结构简单。
The utility model can be used for switching two kinds of gas as well as correct adjusting the air input of the primary admission port with the air supply difference, thereby having a simple structure.
它既能用于两种燃气转换使用，又能随气源不同而适当调节一次进气口空气进气量，结构简单。
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