Shenzhen city autumn kang hong science and technology ltd., with its registered address at plant no. 104, located on the streets of boang, shenzhen city, on the premises of the lu yonggen educational research centre, located in shenzhen city, on the premises of the shenzhen city market supervisory authority and represented by yang xinyan, operates on general lines of operation: ro pure water equipment, edi ultra-purified water equipment, medium water and wastewater reuse equipment, disinfection equipment, laboratory purification equipment, design development, marketing and maintenance of piped drinking water equipment; carrying over the design and construction of air heating, plumbing works, water treatment works, water purification equipment; running e-commerce; domestic trade; and import and export of goods and technology. (except for items prohibited by laws and administrative regulations; items restricted by laws and administrative regulations subject to authorization to operate) sale of mechanical equipment; sale of electronic specialized equipment; manufacture of general-purpose equipment (excluding special-purpose equipment); repair of general-purpose equipment; sale of the internet (except for the sale of goods subject to licence); information technology consultancy services. (a) licensing of projects (in addition to those subject to legal authorization, operating on an autonomous basis under a licence): ro pure water equipment, edi super-purified water equipment, medium water and wastewater reuse equipment, household sewage equipment, ultraviolet fungicide system, micro-acid electrolyte subchloride equipment, electrolytic water equipment, disinfection equipment, laboratory water purification equipment, direct drinking water equipment. (a project subject to legal approval may only be carried out with the approval of the relevant department, subject to the approval documents or licences of the relevant department)