... snowmelt agent process, the user can speed according to snowfall, ice thickness, temperature, traffic, etc. and flexibility grasp. Pre-spreading ... in the low remperature they can contimuously melt snow and ice.2.Environmental protective,and they can reduce the canker ... granule and flake5.The products is flameproof.Usage: snowmelt and ice removing of road, expressway, parking lot, aerodrome and port ...