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US07992585B2 Retrofit valve assembly kit for frost-resistant hydrant 有权
用于防冻消火栓的改装阀组件套件

Retrofit valve assembly kit for frost-resistant hydrant
摘要:
A retrofit valve assembly for a frost-resistant hydrant comprises ceramic valve disks and a hydrant adapter to enable the valve assembly to be readily retrofit to existing frost-resistant hydrants produced by different manufacturers.
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