... 2.cold/hot resistant, 3.anti-impact/cra good quality of rubber speed hump :1. One time forming, cold resistant, hot resistant ... night. 3. Used: Mainly used in the entrance of the highway, the crossing of the roads, railway, driveway, bridge in the traffic ... easy disassembly, security, flexibility, and can reduce collision damage to motor vehicles characte our company: good quality of rubber speed hump