... , can be re-rubberized for a "new tyre life". To produce a truck or bus tyre requires about 60-80 kg of rubber ... our tyre retreading machine,the size as follows,650-16,750-16,825-16,750-20,825-20,900-20,1000-20,1100-20,1200-20,11R22 ... machine 6 pcs tyre retreading machine 8 pcs tyre reteading machine 10 pcs tyre retreading machine 12 pcs tyre retreading machine 14 pcs tyre retreading machine ...