久久中文娱乐网,99天色播,极品性亚洲,九九精品99在线播放,九九九久久亚洲精品,本道精辟综合,日韩Aa电影在线观看,精品一区99,偷拍口爆久久九

Applications：

The PGZ Flat Steel Gate is widely used in controling fows for rectangular holes inWTPs & WWTPs.

Principles & Features：

1.Reliable Rubber Seal.

2.The wedged lock design provides extra sealing.

3.Heavy-duty gate in terms of resistance to corrosions.

4.Clear Labels on Open & Close Positions,clear upper & lower limit ensures safety operations.

5.Easy Operations:less than 150N forces required on handwheel.

6.This gate is not suitable for frequent switching.