Ventilation Equipment Co., Ltd. Foshan City, Lan Yu is a research and development, production, sale, installation diversified high-tech enterprises. Specializes in manufacturing energy saving central air conditioning, evaporative air conditioners, vacuum blower, curtain walls, air heaters, and to undertake ventilation cooling plant engineering, water projects and other large central enterprises focus on technological ... ?????? product development and research, with a number of highly qualified professionals and years of production experience and sophisticated production equipment to manufacture a variety of first-class ventilation equipment for the goal, technology innovation, to provide room for both high performance yet low cost goods and services ... ...