• 曝气采用氧化磨料陶瓷结合高温烧结而成

    Diffuser disc is produced from aluminum oxide and ceramic bonded together with high sintering temperature.

    youdao

  • 曝气采用氧化磨料陶瓷结合高温烧结而成

    Diffuser disc is produced from aluminum oxide and ceramic bonded together with high sintering temperature.

    youdao

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