The 321-Type panel bridge is a type of bridge system that can be dissembled and rapidly erected. It was designed according to British Compact-100 Bailey Bridge. The whole bridge is welded with high-tensile strength steel. The girder is lightweight composite panels and the panels are connected by panel connection pins. The conversion among the parts is easy and they are lightweight. It is easy to assemble or disassemble and transport them.

The introduction of GWD-Type bridge stems from the technical barriers and deficiencies of Bailey Bridge. As is known to all, Bailey Bridge is a common prefabricated steel bridge structure, which is the upper and lower bearing bridge beam with the single pin connecting truss unit as the main beam of the bridge span structure, which has the advantages of simple structure, strong adaptability and good interchangeability. But even if the load is not large, it can only reach 60 meters per single span.

The steel truss bridge is a structural system between beams and arches. It is a structure in which a bent upper beam structure and a pressure-bearing lower column are integrated together.

Container Movement Set is a product developed for the movement of standard containers or objects with standard corner pieces, which has the characteristics of simple operation and convenient walking. Used for short distance, low speed transfer of body packing boxes, transport containers.

Bailey suspension bridge girder by bailey shape on both sides of the LAN cable tower three parts.

Steel box beam, also called steel plate box beam, is a common structural form of long span bridge. Generally used on Bridges with large spans, it is called steel box beam because it looks like a box.