The main business of the 35th category is advertising. Category 11 mainly includes some physical businesses such as lighting and heating. Class 11: Lighting, heating, steam generation, cooking, refrigeration, drying, ventilation, water supply and sanitary equipment. Note: This category includes in particular: ——— Air-conditioning devices; ——— Electric or non-electric bed warmers, hot water bottles, long-handled bed warmers; ——— Non-medical electric heating pads and electric blankets: ——— Electric Kettle; ——— Electric cooking appliances. In particular, this class does not include: — Steam-generating devices (machine parts) (Category 7); — Electrically heated clothing (Category 9). 1101 Lighting equipment and appliances (excluding gas lamps and oil lamps) 1102 Spray welding lamps 1103 Gas lamps and oil lamps 1104 Cooking and household electrical heating equipment (excluding kitchen hand tools and food processing machines) 1105 Refrigeration and refrigeration equipment (excluding refrigerated trucks) )1106 Drying, ventilation, and air conditioning equipment (including heating and cooling room equipment) 1107 Heating and steam equipment (including industrial furnaces and boilers, excluding locomotive boilers, kettle boilers, and steam engine boilers) 1108 Plumbing and heating pipe fittings 1109 Sanitary equipment (excluding toilets Room appliances) 1110 Disinfection and purification equipment 1111 Small heater 1112 Lighting apparatus not included in other categories 1113 Nuclear energy reaction equipment Class 35 Advertisement; Business operations; Business management; Office affairs. Note Category 35 mainly includes services provided by individuals or organizations, the main purposes of which are: ⑴ to assist in the operation or management of commercial enterprises; ⑵ to assist in the management of business activities or commercial functions of industrial and commercial enterprises; and by advertising Departmental services for various goods or services designed to be advertised to the public through various means of communication. This category includes in particular: - categorizing various goods (other than transport) for others so that they can be seen and purchased by customers; this service may be provided by retail or wholesale stores through mail order catalogs or electronic media, such as through websites or television shopping programs ; - Services related to registration, transcription, writing, compilation, or systematization of written communications and records, as well as compilation of mathematical or statistical data; - Services for advertising agencies, and services for distributing instructions or samples directly or by mail; this Classes may involve advertising about other services, such as bank lending or radio advertising services. In particular, this category does not include: - Services of valuation and preparation of engineers' reports not directly related to the operation or management of industrial and commercial enterprises (consult the alphabetical list of services)