Shutter Mounted Industrial Exhaust Fan is designed for use inside the building with vents outside.
快门式工业排风扇，是专为建筑内部排气而设计的。
Shutter Mounted Industrial Exhaust Fan models are available with a blade diameter of 12 ", 18 ", 24 "or 30".
快门式工业排风扇根据型号，刀片直径分别为12英寸，18英寸，24英寸或30英寸。
The utility model relates to a power switch used for a ventilating fan and a special pulling switch used for the closure and the linkage of shutter blades.
本实用新型是一种用于换气扇的电源开关和百叶闭合连动的专用拉线开关装置。
应用推荐