Skoda Kemick Hantai tire severely cracked, replacement required

Complaint content

At the end of the year, I found that the front tires were seriously cracked, and the rear tires were also slightly cracked, but not serious. I replaced a pair of tires and put the rear tires in the front. Now this pair of tires is also seriously cracked. My friend's 17 years of car and other brand tires have not cracked, which is only 3.5 years and 40000 kilometers.