Theconcrete box culvert factorybuilt in Sumatra, Indonesia is used to proudce prefabrication concrete box culverts for cities power transmission lines . The project total length is 220KM between two cities . So, to meet the demand from construction party, we have 45 concrete box culvert molds for the factory to produce 180m concrete box culverts per day . Except the concrete box culvert form, there is also steam boiler, steam pipelines, concrete vibrator bar, gantry cranes, forklift etc . With all the machines we supplied, our customers has successfully supplied enough and good quality concrete box culverts for their project.