Zvinotora Nguva Yakadii Kuti Asphalt Paving Ive Isiri Chepfu

Kazhinji, nzira yacho inotenderera 20 mazuva. Petroleum asphalt inowanzoratidza kuderera kwehuturu, kunyanya kubudisa mahydrocarbon anonhuwirira. Zvakasiyana, marasha tara asphalt, yakapfuma mumhepo ine chekuita nebenzene, inonyanya kuchetura.

Nepo zvinhu izvi zvine chepfu, kuratidzwa kwakakosha nekufamba kwenguva kunowanzodikanwa kuratidza chepfu mhedzisiro.