The registered address of the middle fibre laser filter technology (standing) ltd. Is located in the spring garden forest in guangan county, kanya, hebei province the three villages of the city, no. 101, are registered as the market supervisory authority of the city of guangan, with legal representatives li hsiang, and operate in the following areas: the development of filtering equipment and accessories, filters, cores, filters, valves; production: filtering equipment, dust removal equipment, cores; marketing: filtering equipment and accessories, dust filters, cores, filters, valves; technical research and development, technical services, technical advice, technology transfer of filtering equipment. (projects subject to legal approval may not operate without the approval of the relevant department)