The utility model relates to a pretreating automatic back-flushing water purifier, which relates to the water treatment technology, in particular to a water purifier.
预处理自动反冲洗纯水机，涉及水处理技术，特别涉及一种净化 水设备。
The utility model can also be used for back flushing bag dust collectors and automatic opening and automatical closing devices on non corrosion fluid flow passages.
本实用新型还能应用于反吹布袋除尘器，以及无腐蚀流体通道上的自动开闭装置。
The utility model can also be used for back flushing bag dust collectors and automatic opening and automatical closing devices on non corrosion fluid flow passages.
本实用新型还能应用于反吹布袋除尘器，以及无腐蚀流体通道上的自动开闭装置。
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