If water seal ring, should check with the stuffing at the top of the range is correct.
如有水封环，应检查其与填料函顶部的距离是否正确。
The special support frame can perform connection function and connect cooling water to cool down the seal ring.
特殊安装支架，即起到连接作用， 同时又能接通冷却水对密封圈部位进行冷却。
First, the water pump mechanical seal ring on the surface of metal corrosion.
第一，水泵的机械密封上金属环表面均匀腐蚀。
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