◇.OPTIMIZE INTERNAL CONTOUR DESIGN TO IMPROVE DURABILITY SIGNIFICANTLY. ◇.DEEPENED PATTERN DEPTH COMPOUND COMBINED WITH WIDENED TREAD WIDTH TO ENHANCE EXPECTED MILEAGE MARKEDLY. ◇.REINFORCING BLOCKS BETWEEN THE MAIN PATTERN BLOCKS TO MAKE THE FORCE MORE UNIFORM AND REASONABLE ◇.WIDENED TREAD WIDTH TO IMPROVE DRIVING STABILITY EFFECTIVELY , GIVING DRIVERS A BETTER SENSE OF DRIVING.