Since you are a layman, you must first have a reasonable candidate, at least three people, a sheet metal worker and a painter, plus a small apprentice (regardless of salary), a skilled master of sheet metal painting; Then there is the right venue facade. These two are key hardware, and success or failure lies here. Of course, operation is more important. The department in charge of opening a shop is the maintenance unit of the industrial and commercial bureau and the transportation management office, both of which are charging institutions. You can go through the formalities (license and maintenance permit) while working, which is simple and cumbersome. Then buy tools. If you have to buy a standard paint booth for a big job (renting a house costs a lot of money), don't buy a small job. Others, such as electric welding machine, oxygen welding, wrench, putty, car paint, etc. Ask our host, he knows everything. Tools are inexpensive and easy to buy.