... ,ultra-quiet,high power DC motor technology.Quick-Lock,easy installation.9.Quick-lock technology,easy for installation and easy ... White CartonPackage Size280*380*390mmCompany Profile:Hangzhou Lixuan Environmental Technology was established in 2006.It is a private- ... certificate,3C, GB/ T19001-2008 / ISO 9001-2008 Quality Management System,relying on the strong economical technology strength,excellent ...