保温球阀具有良好的保温保冷特性，且阀门的通径与管径一致，同时又能有效降低管路中介质热量损失。
Ball has good thermal insulation cold insulation properties, the valve diameter the diameter line pipe in the same time reduce medium heat loss.
保温球阀具有良好的保温保冷特性，且阀门的通径与管径一致，同时又能有效降低管路中介质热量损失。
Ball has good thermal insulation cold insulation properties, and the valve diameter and the diameter line pipe in the same time reduce medium heat loss.
保温球阀具有良好的保温保冷特性，且阀门的通径与管径一致，同时又能有效降低管路中介质热量损失。
UsageBall has good thermal insulation cold insulation properties, and the valve diameter and the diameter line pipe in the same time reduce medium heat loss.
安装NIB -SEAL ？保温手柄美国尼伯科青铜球阀是保持保温管道系统完好无损的唯一方法。
NIBCO bronze ball valves installed with NIB-SEAL? Insulated handles are the only approach that keeps your insulated piping system completely intact.
安装NIB -SEAL ？保温手柄美国尼伯科青铜球阀是保持保温管道系统完好无损的唯一方法。
NIBCO bronze ball valves installed with NIB-SEAL? Insulated handles are the only approach that keeps your insulated piping system completely intact.
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