A large amount of steel is used. Large fitness equipment, such as dumbbell rack, bench press rack, squat rack, etc. Frames and supports need to be made of a lot of steel, so their steel consumption is relatively large. At the same time, it is necessary to ensure that the surface of the product is smooth and smooth, and there are no quality defects such as burrs and flash. Usually, high-quality carbon structural steel or alloy steel is selected as raw material, and it is processed and shaped by cutting, bending, welding, polishing and other processes.