In order to solve the problem of the disconnection between the experimental process and the actual production of the mine selection plant, the Smelting and Melting Center has set up an on-site commissioning service department to solve the technical problems actually existing in the beneficiation process for various mine selection plants. In particular, according to the selection process of the process design of our company's ore dressing feasibility test report, the production and commissioning difficulties, the company will take the initiative to contact, assist the plant selection and commissioning.