: it's four-blade type-- this structure allows the coil to be placed more firmly.
2. The surface: the surfaces are chrome-plated-- this makes the surface strong and durable, and prevent the coil from being damaged.
3. Uncoiler spindle: 45# seamless steel tube. after being tempered and treated, it will not be deformed due to long-term load. these techniques can extend the service life of machine.