• 常用水阀桶式热动力、自由、双金属脉冲、钟形等。

    The trap is commonly used for floats, thermal-power, free-float, double-metal-style, pulse, and so on-bell-shaped float.

    youdao

  • 常用水阀桶式热动力、自由、双金属脉冲、钟形等。

    The trap is commonly used for floats, thermal-power, free-float, double-metal-style, pulse, and so on-bell-shaped float.

    youdao

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