国产草逼视频_第10部分-娇妻的呻吟_成年片美女福利视频在线_男男拍床戏真的进去了h文

hydraulic diaphragm valve, foundation valve

hydraulic diaphragm valve, foundation valve

hydraulic diaphragm valve, foundation valve

 

series hydraulic diaphragm valve adopts full bore valve seat design with low price and good hydraulic performance

 

 series hydraulic diaphragm valve is the basic main valve. By adding different accessories, it can be composed of pressure reducing valve, electric control valve, pressure relief valve, pressure holding valve, manual on-off valve, ball valve, etc.

 

 series hydraulic foundation valve is made of glass fiber reinforced nylon, which can be directly installed in the open air, and has flow regulating kinetic energy.

 

Top