Petroleum Asphalt Road Construction Bitumen 45 - 52℃ Softening Point2017-09-22 13:41:19 |
Drainage Engineering Road Construction Bitumen 60 / 70 Proportion ≤1.02%2017-09-22 13:41:19 |
Good Wettability Road Construction Bitumen Moisture ≤1% Petroleum Asphalt2017-09-22 13:41:19 |