The registered address of guangdong pre-rong mechanical science and technology ltd. Is located next to dasha village square, grand ridge hill town, dong chong city. The registration authority is the market supervision authority of dong chong city, represented by a legal person, zhonghua, and operates in the areas of design, research and development, production and sale; mechanical equipment and accessories; import, export and import of goods; and technology. (projects subject to legal approval to operate with the approval of the relevant department)