... , high efficiency, 2.high air flow, low rotate speed, 3. light weight Actuator for spray booth1.Low noise, high efficiency, 2.high ... air flow, low rotate speed,3. light weightDesign for wind door control in the warm passage system and the can ... independent R&D and design capablities;3.Follow international quality control system ISO9001:2008;4.Well equipped with complete faciliies and ...