1, definition: Gantry is a multifunctional device, which is used to improve the strength and endurance of the body. It can be used for all kinds of training, such as squat, bench press, hard pull and so on. These are the core movements of strength training. Miss machine is a kind of training equipment with fixed weight, which is used for basic training, such as bench press, squat, hard pull and so on.

2. Applicability: The height of the cross bar of the gantry can be adjusted to meet the needs of people with different heights. Longmen is relatively cheap and suitable for small and medium-sized gyms or families. The Smith machine is also equipped with additional equipment, such as bench press and cushion, so that people can perform different actions on one device. Smith machine is suitable for gyms and professional training centers.