Zhongyu Railway Transportation Technology Co., Ltd., established on 1996-08-26, Business scope includes research and development,design,manufacture,Sales and Service:bridge bearing,building support,shock absorber,damper,speed locker,shock absorber,vibration isolator,Bridge expansion device,Engineering Rubber Products,Rubber waterstop,Comprehensive pipe gallery support,seismic support,Building waterproof and waterproof membrane,Equipped with shock absorbers(fastening node),Sound-absorbing, sound-insulating and noise-reducing environmental protection equipment and facilities,Steel castings,cast iron,forged components;Research and development of waterproof and waterproof materials,design,manufacture,Sales,install service;Fabrication and installation of metal components;Chemical raw materials(Free of Hazardous Chemicals,highly toxic chemicals),metallic material(No precious metals)promotion of;Technology Development Consulting,Technical extension services;Business Management Consulting;software development;Advertising Design,make,release;Acting import and export and technology import and export.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)