機器
boy
cement mixer
closeup
concrete
construction
construction machinery
crushed
damaged
demolished
dirty
domestic
drip
electric
equipment
grunge
hopper
horizontal
industrial
industry
iron
isolated
machinery
metal
mix
mixer
mixing
mixture
mortar
motor
neglected
old
outdoors
place
pour
pouring
preparation
rundown
rusteaten
sand
sidewalk
site
small
stationary
tool
used
water
work tool
working
workplace
worn
young