General items: wholesale of hardware products; General merchandise sales; Retail sales of edible agricultural products (excluding contact lenses): sales of metal tools; Retail of fresh vegetables; Retail of pet food and supplies: wholesale of pet food and supplies; Sales of knitwear and textiles; Domestic trade agent: stationery retail: stationery wholesale: office supplies sales; Hardware products retail: electrical shaft sales; Household appliance sales: household appliance installation service; Manufacturing of special equipment for environmental protection: import and export of goods; Door and window sales (except for projects that need to be approved according to law, independently carry out business activities according to law with the business license)