亚洲狠狠做深爱婷婷影院-国精品无码一区二区三区在线蜜臀-超清无码熟妇人妻av在线电影-国产十八禁啪啦拍无遮拦视频-国内偷窥一区二区三区视频

FEATURE

• With WIFI remote intelligent control;

• Permanent magnet rotor stop-flow frequency conversion brushless motor, low noise, high efficiency and energy saving;

• External drive controller, digital display, arbitrary adjustment;

• External power adapter is used for power supply, and electronic components are potted with insulating materials, with high insulation strength, safety and reliability;

• Using engineering plastic pump body and ceramic shaft, wear resistance and long life.