1. Tyre retreading extruder gun is designed with Self-heating screw shaft device, screw shaft can produce 80-90 Degrees Celsius constant temperature, make rubber softening and put the air exhaust clean.

2.Self-heating screw shaft using alloy steel chromium manganese titanium vanadium etc. rare metals, with high elasticity, wear-resisting characteristic.

3.Solve the problem of air residues which happened when fill rubber by hand.

4.Avoid dirtying rubber contrasting with fill rubber by hand, increase the bonding effect.

5.Save time and effort,it is a good tool for tire retreading and repairing.