少妇高潮不断出白浆av,国产亚洲综合区成人国产系列,国产乱理伦片在线,欧美、另类亚洲日本一区二区

  • Electric-hydraulic actuated valve remote...DJC-VK electric-hydraulic valves remote control system consists of valves control console (box), electric-hydraulic actuator, electric-hydraulic actuated butterfly valve, electric-hydraulic actuated check stop valve, electric-hydraulic actuated stop valve
  • Control console and control cabinetThe control console is used to control all valves. A mimic panel on the front of control console which is made according to the ballast tank and oil pipeline. The mimic panel is installed with the indicating lamps displaying the valves open/close, meter i
  • Electric-hydraulic Actuated Butterfly Va...Electric-hydraulic actuators can actuate butterfly valves, stop/check stop valves and ball valves, etc. There are more small size, more convenience to be arranged, system more simple and more reliable. With internal digital communicate module