Adopting advanced sewage treatment systems, our company has the good abilities to make all pollution factors in controllable ranges, and our emissions have reached the national standards of China. We performed environmental protection work in such principles: "prevention first, combining prevention with treatment, comprehensive treatment" ; "adhering to the implementation of cleaner production, the implementation of pollution control in the whole production process"; "the standard-meeting implementation of pollutant discharge and controlling on the total quantity of pollutant".