预先切割长度的加长组件总成。采用现存阀门顶部进入塞。
Extension Assembly in precut lengths. Use exiting valve top Access Plug.
元件，该元件固定到一板状组件上的方法，组件总成及模扣。
Element, method of attaching element to plate-like component, assembly and die button.
维修组件包括隔膜总成，阀瓣总成和垫圈。
Repair Kit consists of diaphragm assembly, disc assembly and gasket.
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