construction concrete culvert box mold machine

construction concrete culvert box mold machine used to make reinforced concrete culvert box with wet casting concrete or half-dry concrete, this kind of mold has features of low cost, easy to operate and save laors. widely use in all kinds of road culvert project. usage of culvert box concrete drainage box ordinary used in city unerground pipe line for power, water and other unerground project. culvert box is easy to inspect, widely used road culvert engineering. Feature