Road: 90 percent of the bitumen is used in the construction and maintenance of roads
Roofing: 10 percent of the bitumen is used in the roofing and other (canals and tunnels, pipe coating)
Road: 90 percent of the bitumen is used in the construction and maintenance of roads
Roofing: 10 percent of the bitumen is used in the roofing and other (canals and tunnels, pipe coating)