crossing with shield machine
cutter head of shield machine
direction of shield machine
Key-word: shield machine
mudding-type EPB shield machine
shield machine cutting tool
Shield Machine Launching
Shield machine passing through station
shield machine refitment
shield machine with super-large diameter
Slurry Balanced Shield Machine
tunnel boring construction by shield machine
Turnabout of shield machine
addition coefficient selection in equipment selection
“West Lake”water shield soup