Please state the generic product type e. g. Washing Machine, Gate Valve, WC etc.
请描述所申请产品类型：如洗衣机，阀门，马桶等。
First open water valve to send to the temperature reached e. reascularization gas.
先打开水阀再送电，待炉温达到规定值再通入煤气。
First open water valve to send to the temperature reached e. reascularization gas.
先打开水阀再送电，待炉温达到规定值再通入煤气。
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