Underground Utility Gallery Molds/Precast Concrete Box Culvert Molds are often used in the construction of urban underground tunnels for the concentrated laying of municipal pipelines of electricity, communications, cables, water supply, drainage, heating, gas. It fundamentally solve the problem of "road zipper" - repeating trenching, and will gradually replace main streets' overhead spider-web lines. Our composite utility gallery mold adopts advanced technology from famous mold manufacturers. Based on the domestic condition of underground construction， wedeveloped our mold that is suitable to bad environment, no deformation in continuous production, anti-leakage, and with smooth surface and no porosity of finished products. With continuous refinement and improvement, our molds have been adopted by more and more precast concrete element factories in China.