Structural components of noise barrier and highway sign gantry for Tseung Kwan O Lam Tin Tunnel pr

Structural components of noise barrier and highway sign gantry for Tseung Kwan O - Lam Tin Tunnel project #Structural components of noise barrier and highway sign gantry for Tseung Kwan O - Lam Tin Tunnel #project-#Yuantai Derun #Steel Pipe Manufacturing Group #Engineering Case Sharing Episode 4 Standard: #EN10210 #S355J0H #rectangular steel tube : 300 * 500 * 20mm Total 1200 tons #pipe #manufacturing