1. When choosing paint, it is important to ensure that it is environmentally friendly. If it is not environmentally friendly, even if it is cheap, no one dares to use it. Paint belongs to a class of solid chemical products, and many people know that chemicals have an odor, and long-term contact can also be harmful to human health. Even when spraying magnetic rings, it is necessary to wear a gas mask to operate.

2. When spraying paint, it is necessary to process the magnetic rings according to the color chosen by the customer, including black, white, yellow, red, blue, green and other colors available on the market. However, the quantity must be completed according to the customer's purchase order.

3. Operational issues. Nowadays, many large spraying factories use automated spraying, which is very convenient and faster than manual spraying. They can also spray more uniform magnetic rings, unlike manual spraying, which is not as complex and has multiple processes, and the spraying is somewhat thick and thin.

4. When the weather is hot, the manually sprayed magnetic rings are also easy to dry. If it is winter, it will take a long time to dry, especially in humid weather where moisture is flying in the air, making it even more difficult to dry. Automatic spraying machines are different, with both spraying and drying functions, which can be shipped immediately after spraying.