Metal stamping machines can be divided into hydraulic presses and mechanical presses, and both are often used in industrial metal forging applications.

The spiral is usually a cylinder or a round hole with uneven helical stripes on the surface. The cylinder is called a screw, the round hole is a nut, and the helical stripes are a thread.

Metal stamping machines can be divided into hydraulic presses and mechanical presses, and both are often used in industrial metal forging applications.