beam lifter machine to built bridge

Factory price bridge beam lifter crane widely used in the following applications: 1. Construction Site 2. Bridge 3. Highway 4. Railway Its proper lifting weight is 100t to 1750t. Its proper working temperature is -20C to 40C degrees Working environment of Factory price bridge beam lifter crane: 1.Power source is three-phase alternating current,rated frequency is 50HZ,rated voltage is 380V, 2.The altitude height of site is ought to be less than 2000m, 3.Flammable,explosive and