• The valve consists of a guard cage, spring, valve disc, retaining ring and seat. It can be combined with pipe fittings such as reducing couplings, drain elbows, etc.

    警戒装置、弹簧、阀阀座组成可以许多管件连接,管接头、排水弯头等。

    youdao

  • The valve consists of a guard cage, spring, valve disc, retaining ring and seat. It can be combined with pipe fittings such as reducing couplings, drain elbows, etc.

    警戒装置、弹簧、阀阀座组成可以许多管件连接,管接头、排水弯头等。

    youdao

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