The registration address of the kim fung autonomous gateworks in dong chong city is located at no. 8 on the 7th street in the kungbai village, upper tungbing town, dong chong city. The registration authority is the market supervision authority of dong chong city. The legal entity is represented by huang chong, and operates in the following areas: production and sale of electric rolls, electric doors, remote control garage doors and fire-proof curtains。