... color 2.cold/hot resistant, 3.anti-impact/cra manufacture of Plastic barrier for parking ,road : 1. One time forming, cold ... night. 3. Used: Mainly used in the entrance of the highway, the crossing of the roads, railway, driveway, bridge in the traffic ... performance. 5. Good chemical performance, aged-resistance and temperature resistance. 6. Common Colors: orange, blue, black, green, can be made ...