General Projects: Door and Window Manufacturing and Processing; Door and Window Sales; Indoor Wooden Door and Window Installation Services; Metal Door and Window Engineering Construction; Hardware Product Manufacturing; Hardware Product Retail; Hardware Product Wholesale; Metal Accessories for Construction Manufacturing; Building Decoration Material Sales; Building Material Sales; Lightweight Building Material Manufacturing; Lightweight Building Material Sales; Furniture Manufacturing; Furniture Sales; Furniture Accessories Production; Furniture Accessories Sales; Furniture Installation and Maintenance Services; Non-Electric Household Appliance Manufacturing; Non-Electric Household Appliance Sales; Metal Daily Use Product Manufacturing; Daily Use Product Sales; Commercial Cryptographic Product Production; Commercial Cryptographic Product Sales. (Except for projects requiring approval according to law, business activities shall be conducted independently in accordance with the law with a business license. )