A boring machine for construction ground investigation.
Keywords
steel,
fuel,
old,
energy,
machinery,
building,
field,
power,
equipment,
sky,
machine,
industrial,
construction,
industry,
tool,
device,
ground,
investigation,
quality,
check,
process,
progress,
town,
local,
japan,
boring,
work,
job,
prepare,
preparation,
structure