Each must have stainless steel valve stem and decoration the valve should be provided with a waterproof housing and the end flange connection, unless otherwise indicated.
每个阀须有不锈钢干和装饰阀门应具有防水住房和提供法兰连接结束，除非另有说明。
Each must have stainless steel valve stem and decoration the valve should be provided with a waterproof housing and the end flange connection, unless otherwise indicated.
每个阀须有不锈钢干和装饰阀门应具有防水住房和提供法兰连接结束，除非另有说明。
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