underground building with tunnel shield
Palabras clave
machinery,
circle,
tube,
equipment,
shield,
cutting,
underground,
working,
industry,
tunnel,
construction,
cross,
activity,
presentation,
digging,
drilling,
building,
train,
shape,
mine,
object,
dimensional,
subway,
design,
standing,
machine,
station,
part,
hole,
large,
steel,
iron,
plan,
built,
repairing,
technology,
step,
industrial,
metallic,
manufacturing