Gịnị bụ okpomoku nke asphalt

Igwe ọkụ ọkụ maka asphalt ọkọlọtọ ekwesịghị gafere 170 Celsius iji gbochie ịka nká ngwa ngwa.

Ịgbatịkwu ọkụ na oke okpomọkụ nwere ike ibute mmebi. Mgbe ị na-ejigide mkpuchi ogologo oge, Okpomọkụ kwesịrị ịdị n'okpuru 100 Celsius.