nhi headlines
north extension line of shenyang metro line 2 finished smoothly
published：2016-04-11
recently, the transfixion of the section 6of north extension line for shenyang metro line 2 has been finished smoothly,which is manufactured by nhi. it adopts the φ 6.28m earth-pressure balancetbm, and the total tunneling mileage is 1502m. (wang yao)