What is the secondary pressurized water supply equipment?

The so-called secondary water supply equipment is the original pressure in the tap water on the secondary pressurization is called secondary water supply equipment, secondary water supply equipment is divided into several kinds.

Okai secondary water supply equipment is divided into the following categories: non-negative pressure water supply equipment, frequency conversion water supply equipment, constant pressure water supply equipment, box-type water supply equipment, towerless water supply equipment, and so on

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