The registration address of hongquan purge technology ltd. Is located in room no. 453 at changping port avenue, dong chong city, guangdong province. The registration authority is the market supervision authority of dong chong city, represented by xue shikun, and operates in the following areas: industrial cleaning and surface processing materials, industrial lubricants, plastic washing agents, environmentally friendly solvent washing agents, metalworking fluids, metal protection materials, washing equipment and consumables. (above non-hazardous chemicals) (projects subject to legal approval and subject to the approval of the relevant department) i'm not sure