... noisy,CE certificate JCD series high-grade type heavy hammer exhaust fan features.1. Certificate, CE.2. Frame, all the frames are ... , class F, efficiency 90%, top/foot mounted, certification, CCC&CE.(motor can be supplied as demand)10. V-belt, A type ... belt,11. V-belt pulley , motor side, diameter 95 mm , shaft hole size 14mm , material, casting ...