Chinese engineering company digs 1st over-1000m railway tunnel in Laos Xinhua VIENTIANE, Oct. 28 (Xinhua) -- Chinese engineering company completed on Sunday the first over-1000-meter tunnel along the China-Laos railway. Nateuy No. 1 Tunnel, some 360 km north of Lao capital Vientiane, is located in the northern Lao province of ... |