日日拍夜夜拍丨国产wwwwwww丨久久久久久中文字幕丨日韩精品播放丨欧美日韩一级久久久久久免费看丨自拍成人福利视频免费在线观看丨最新国产网站丨国产成人8x人网站在线视频丨国产成a人亚洲精品无码久久网丨97在线观看免费丨av黄色片丨五月婷婷六月丁香动漫丨777精品久无码人妻蜜桃丨特黄熟妇丰满人妻无码丨琪琪色视频丨国产亚洲999精品aa片在线爽丨欧美乱淫丨久久伊人av丨超碰在线94丨无遮挡又黄又刺激的视频丨亚洲欧洲日产韩国在线看片丨欧美操大逼丨欧美一级在线免费观看丨亚洲日本视频在线观看丨国产精品国产三级国产av品爱网

FEATURE

• 
  

  High performance and energy saving by the automatic  speed adaptive DC frequency conversion technology.

• Extremely quiet in operation.

• Suitable for fresh and marine water.

• Suitable for immersible and land use.

• Motor epoxy-sealed andno copper element exposed.

• Ceramic shaft and sleeve, corrosion preven-tive and  long life .