... addition to snow and ice at the same time ... wheels rolling to melt ice. It is low efficient ... agent can melt away ice and snow and at ... can speed according to snowfall, ice thickness, temperature, traffic, etc. ... contimuously melt snow and ice.2.Environmental protective,and ... flameproof.Usage: snowmelt and ice removing of road, expressway, ... snow melting agent, ice melting agent, calcium chloride, Calcium ...