Making a wastewater pond to what business scope of invoicing to customers

Environmental engineering or water treatment equipment. You can choose one of the following business scope to issue relevant bills to customers:

1, environmental protection engineering design and construction: can include the design of waste water tanks, construction and other engineering content.

2, environmental protection equipment sales: can include the sale of waste water tanks and related equipment.

3, environmental protection engineering consulting: to provide technical consulting services related to waste water tanks.

4, wastewater treatment works: provide wastewater treatment programs and engineering construction services.