Vim li cas Asphalt yuav tsum tau heated

Preheating asphalt facilitates nws hloov mus rau hauv cov khoom brewing, enhancing nws fluidity.

Qhov no ntau zog txaus pub rau cov asphalt saib rau hauv pores thiab crevices npaum li cas, Muaj ho txhim kho nws waterproofing capabilities.