The form of a roof fan specifications and wide range of applications, according to occasions and air flow, pressure and noise requirements. High efficiency, low noise: the use of advanced CAD software, designed by the multi-objective optimization. DWT-I series, No. 12 # -24 # fan eight kinds of machine, change the speed, angle, and leaf-type methods, the expansion of the range of performance parameters to meet the needs of different work conditions to reach the fan and system area with to facilitate the realization of energy saving and noise reduction. 
 The Liaocheng Sunlight Stainless Steel Co., Ltd. is currently the only one specializing in the production of roof ventilation equipment manufacturers. In recent years, under the joint efforts of engineers and technicians, factory production of free electricity --- roof ventilation domestic specifications largest, most complete variety of manufacturers, one of which 300, 360, 450, with in residential buildings, villas floor roof ventilation mouth, 500, 600, 680 is mainly used for factory workshop and large public places ventilation exhaust. Contact: King Star Sales Tel :0635 -8,322,238 13,906,356,805