Zhong Ding Hao Jewelry Co., Ltd.. General items: jewelry retail. Jewelry wholesale. Jewelry recycling and maintenance services. Sales of first-class medical devices. Sales of medical devices of category II. Retail of hardware products. Wholesale of hardware products. Wire and cable business. Office supplies sales. Daily necessities sales. Stationery supplies retail. Stationery supplies wholesale. Clothing retail. Clothing wholesale. Footwear and footwear retail. Wholesale of shoes and hats. Knitted textiles sales. Cosmetics retail. Cosmetics wholesale. Sales of plastic products. Disinfectant sales (excluding dangerous chemicals). Glasses sales (excluding contact lenses). Electronic product sales. Health food (prepackaged) sales. Food sales (prepackaged foods only). Enterprise management consulting. Marketing planning. Organizing cultural and artistic exchange activities (except those that need to be approved according to law, and can independently carry out business activities according to law with the business license) Licensed projects: Category III medical device business (projects that need to be approved according to law can only be carried out after being approved by relevant departments, and the specific business projects are subject to the approval documents or licenses of relevant departments).