neck stretching machine

neck stretching machine   It is a non-cutting machine for processing which taken the advantage of efficient for production,simple for equipment,easy for operation,saving raw material,stable for quality and so on.it utilizes hydraulic technology to bring required necking parts such as circular steel and thread steel to specialized abrasive tools shrinking and molding which enhance density of pressed steel as well as tensile strength of material.the renained plastic processing and beam toughness make the intensity of shank and bar unanimous which handle the drawback of diminished stretching resistance and beam toughness caused by lathe peeling.