The investment in car washing industry is small, but the requirements for the surrounding environment are high; Wastewater discharge and parking space requirements are particularly important; The advantage is that the ship is small and easy to turn around. Once there is a problem, it will be faster to withdraw funds and the loss will not be great.

The catering industry is very particular about site selection, dishes selection, decoration style and parking spaces, and the investment is relatively large, mostly involving real estate. But in line with the principle of high input and high output, this should be analyzed in detail.