Ukuhlolwa kwe-ASTM A888 yentsimbi yokuphonswa kokufakwa kwentsimbi ngaphambi kokuthunyelwa, isambatho se-asphalt.

Ukuhlolwa kwe-ASTM A888 yentsimbi yokuphonswa kokufakwa kwentsimbi ngaphambi kokuthunyelwa, isambatho se-asphalt.——Disemba 23, 2019