英文關鍵字
background
bolt
box
bunch
carpenter
carpentry
closeup
construction
corkscrew
cross
drill
equipment
fasteners
floating
focus
hardware
heap
industrial
industry
iron
many
mechanics
metal
metallic
part
pattern
pile
repair
rivet
screw
screws
self
selftapping
sharp
silver
slow
staple
steel
tapping
texture
thread
tip
tool
work