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The Fig . 1710 Balancing valve is a non - rising stem design incorporating a parabolic ( plug ) shaped disc.
型号1710平衡阀为暗杆结构,配置抛物线 ( 塞 ) 形阀瓣.
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Balancing valve is used to regulate and measure the rate of flow of water.
流量平衡阀用于调节和测量水的流量.
平衡阀???
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