If do big specification line, two outlet open, so that strengthen the cooling effect of the copper wire.

如果做大的规格线，两个出水口都要打开，这样加强铜线的冷却效果。

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Fire hydrant manual warning button besides holding wire, but also needs to open the pump reply line to the pump house.

消水栓脚动报警按钮除旌旗灯号线中，借需求启背鲐问线至泵房。

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Fire hydrant manual warning button besides holding wire, but also needs to open the pump reply line to the pump house.

消水栓脚动报警按钮除旌旗灯号线中，借需求启背鲐问线至泵房。

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