機器
bearing
cable
cardona
cargo
catalonia
coil
construction
crank
dentate
engine
engineering
equipment
extraction
force
gearbox
grey
heavy
industry
iron
jagged
load
material
mechanical
metal
mine
motor
movement
obsolete
old
potash
power
pulley
roller
rotation
rusty
salt
serrated
shaft
spain
sprocket
steel
system
technology
texture
tooth
tower
transmission
well extraction
wheel
winch
wire