... Low energy consumption 4,Long service lifepoultry house fanThe fan blade is stainless steel , big air volume, ... , no broken, attractive and durable. (adopting aluminum fan blade in the past, which had some problems caused ... 5.We can manufacture A type belt or B type belt according to the sale of dealer, ... France, high intension,low noise,long service life.B.The high efficient and energy-saving motor passed ...