The registration address of lma is located at camp no. 80 of the guangan springs and leisure business park in guangangang city, hebei province, with the registration authority being the guangan county market supervision authority of yuang city and the legal person representing xu lin fai, and covers general projects: production, sale, filtering, core, filtering, filtering, filtering, dust removal, purification, environmentally friendly equipment, sewage treatment equipment, hydraulic system equipment, air compressor equipment; sale of mechanical parts, parts and components; sale of plastics; sale of metal products; sale of moulds; technical services for filtering equipment and moulding, technology development, technical advice, technical exchange, technology transfer, technical promotion; specialized equipment repair. (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)