As far as product development and performance testing are concerned, we entrust a third professional party for testing our products at a substantial expenses in addition to our own testing and laboratory equipment. In 2004, 2280mm and 500mm movement capacity bridge expansion joints were tested through accelerated loading facility commissioned by National Quality Supervision and Inspection Center for Roads and Bridges (formerly known as Highway Engineering Test Center of China Ministry of Transport), which was the first performance test of similar products both at home and abroad; in 2007, LB unit finger expansion joint with multi-directional displacement capability was tested by Beijing University of Science and Technology.