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。
Gate type and number of inputs and outputs can be specified.
可以指定门类型和输入、输出数目。
The gate plate be designed knife type, the seat is good.
刀锋式闸板设计，关闭时由斜面施力于阀座，密封性好；
The gate plate be designed knife type, the seat is good.
刀锋式闸板设计，关闭时由斜面施力于阀座，密封性好；
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