Wangpo Coal Mine 80m-span Grid Truss Trestle hauv Jincheng
Ib qho kev ncua ntawm qhov project trestle no ncav cuag 80 meters, uas yog qhov loj tshaj plaws ntawm cov trestles zoo sib xws hauv Suav teb. Nws muaj ob-siv thiab ob-txheej kab sib chaws truss qauv.