Financial billing classification refers to the classification code of tax control equipment and the category of billing items. Caustic soda belongs to the eighth category of corrosive products, also known as sodium hydroxide, and its chemical formula is NaOH, commonly known as caustic soda, caustic soda and caustic soda. It is a strongly corrosive alkali, usually in flake or block form, easily soluble in water (exothermic when dissolved in water) and forms an alkaline solution.
Determine the main categories of invoice items:
1. If the company sells certain goods or goods, please select (goods) in the first category.
2. If the company provides labor services (processing, repair, repair and other non-camp-added enterprises), please choose (labor services) in the second category.
3. If the company provides sales services (enterprises that increase business value), please select (sales services) in the third category.
4. If the company provides services related to intangible assets (patents, trademarks, etc.). ), please select (intangible assets) in the fourth category.
5. If the company is a real estate sales enterprise, please choose (real estate) in the fifth category.