Design with three longitudinal zigzag patten goves provides
water drainage perfomance in wet oad and excellet steer-ability
on snowice road.
Design with bg patten bock outside provides enough rgidity and
Design with multiple crossed patten inside enlarges snow hoding
capabity and strength of snow column, and enhanced the grp
The fine sots in the pattem reduced the hiting noise, the zigzag
slots diftsed the noise frequency, making the noise even in
various frequency waves.