Company is mainly engaged in railway rail transit highway and water conservancy municipal infrastructure facilities, such as large construction product research and development production and sales maintenance services, based on the special line for passenger transport and passenger railway line pot bearing ball bearing and the special line for passenger transport bridge expansion joints, road bridge bearing, rubber waterstop, etc as the core products of professional production enterprises in 2016 the company passed the CE certification in the industry take the lead in the company gained a prominent Chinese expansion joint top ten brand quality assured brand development science and technology enterprises in Hebei province China strong enterprises Top 20 industrial enterprises and other honors.