1. Used by joint wire of electric element loaded in barrel welding thread loaded in barrel.
2. Equipped with pay-off frame and speed regulating accumulator.
3. ADJUSTABLE SPEED DEVICE WITH AUTOMATICALLY SPEED
4. ADJUSTABLE TENSION OF COIL WITHIN THE WIRE IN A FREE STATE WITHOUT RESPONDING FORCE
5. ADJUSTABLE THE RANGE OF ECCENTRIC WITHIN ADJUSTABLE FORMS QUINCUNX