GPZ bridge basin rubber bearings, QZ bridge ball bearings, bridge plate rubber bearings, bridge seismic bearings, GQF/GQZ, GQC, SSF series of bridge expansion devices, rubber water stop belt, shield segment waterproof materials and all kinds of plastic coated pipes, steel-plastic composite pipes, hot-dipped steel cable protection pipes and their fittings. Sales network throughout the country's provinces, municipalities directly under the Central Government, autonomous regions and so on.