The Herrenknecht company specializes in tunnel-boring equipment. Last year, it sold three of its enormous drilling machines to Mexico, where they are to help solve an equally massive problem: the inadequate drainage and wastewater system of Mexico...
China's Giant tunnel boring machines are used to excavate the ground using a circular cross section that drills through a variety of ground soil or rocky earth to produce subway tubes, tunnels for railways and many more.
SUBSCRIBE To Richard...