久久在精品线影院精品国产_国产精品一区二区久久不卡_国产内射999视频一区_国产99久久九九精品无码_人妻熟妇乱又伦精品视频无广告_久久在精品线影院精品国产_国产精品一区二区久久不卡_人妻熟妇乱又伦精品视频无广告_7878成人国产在线观看_久热国产VS视频在线观看

簡(jiǎn)體中文版 English

Product List

The "LL" type four way ball valve only needs to operate the wrench or the actuator to turn the ball 90 degrees, and simultaneously the flow direction of the two media is switched, which is convenient and rapid, and the effect of a valve is realized. The four way reversing valve, a water supply valve to achieve positive and negative switching, each turn 90, a water supply switch, used four valves, water supply valve 1, valve 2, 4 open, closed 3; reverse water supply valve 2, valve 1, 3 open, 4 closed, a four valve replacement now, the operation is convenient.
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, caliber. Specific please contact or online advisory contact.
Mandatory
Mandatory
Mandatory
Mandatory

Be sure to write clearly consulted or purchase products detailed parameters and quantity.