韩国三级大全中文字幕网址,久久精品国产清高在天天线,日本九九热在线观看官网,日本中文字幕有码在线视频,伊人久久无码av一区二区三区

>>Performance characteristics

◆ The 6-blade propeller is 430BA stainless steel and all  pass the balance for low noise and low vibration.

◆ Each motor is  individually tested for 100% quality control.

◆ Direct-driving motor avoids the power loss caused by belt transmission, more efficient, bigger air volume, higher stability and quiet operation.

◆ Avoid using of belt pulley,belt, bearing and other components, has more convenient and warranted mai.

>> Technical parameter