機器
action
banner
barrier
collector
construction
conveyor
corridor
danger
deposit
door
dustman
elevator
equipment
factory
fantasy
flap
game
gamer
garbage
gate
heavy
hoist
icon
industrial
iron
lift
line
machinery
manufacturing
mechanical
metal
moving
passage
peter
picker
player
safe
scavenger
space
spaceship
steel
strongbox
submarine
technology
transformation
valve
wallpaper
warning