What are the main business incomes of industrial enterprises?

The main business income of industrial enterprises mainly includes sales of goods, self-made semi-finished products, substitute products, repair products, provision of industrial services and other income; \x0d\ The main business income of a commercial enterprise mainly includes the income realized by selling commodities; \x0d\ The main business income of the consulting company mainly includes the income from providing consulting services; \x0d\ The main business income of the installation company mainly includes the income from providing installation services. \x0d\ The income from main business refers to the income realized by the regular activities that an enterprise engages in to achieve its business objectives. The main business income generally accounts for a large proportion of the total income of enterprises, which has a great impact on the economic benefits of enterprises.