Outer rotor axial flow industrial fan guard with diameter 200-800 Our company Hangzhou Chaotuo Electric Automation Co., Ltd ,was founded in 2001, with more than 20 years of hardware manufacturing experience, the main production: Fan guards, wire basket,kitchen dish rack and all kinds of high-strength fasteners, as well as fans and accessories, we have engaged in fan supporting for many years of production and management experience, accept OEM/ODM.