国产成人在线免费观看I国产一级在线看I欧美日韩18I亚洲国产成人精品在线观看I爱射综合Iav不卡免费在线观看Ia视频免费Iav再线观看I久久精品3I欧洲在线免费视频I欧美电影在线观看I久久国产区

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;

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

• Adopt engineering plastic pump body and ceramic shaft, wear-resistant and long life.