activity
attach
black
circular
concrete
construction
design
drill
element
equipment
figure
fix
fractured
grey
grid
hammer
hardware
home
illustration
image
improvement
instrument
iron
isolated
men at work
metal
mirror
nail
nobody
object
power
repair
repairing
rivet
set
sharp
signs
simplicity
sparse
steel
symbol
tool
utility
wall
white
work
zinc