Ningbo Jiaerling Pneumatic Machinery Co., Ltd is a professional China Valves Manufacturers and Valves suppliers, we are was founded in 1995, with the workshop area of 50000 square meters.JELPC supplied valves of water supply and drainage system for the Bird's Nest Stadium and the Water Cube Aquatics Center in 2008 Beijing Olympic Games and environmental recycling system for 2010 Shanghai World Exposition.We are awarded the honorable title of National high-tech enterprise of China. We have more than 30 national invention patents. We are able to design and manufacture pneumaticcontrol components(valves), executive components (cylinders), air treatment units and pneumatic tube.