機器
accessory
bolt
build
business
calipers
closeup
connection
construction
engineering
equipment
fasten
fastener
fix
gear
hand
handtool
hardware
head
industrial
industry
job
machinery
manufacturing
master
measuring
mechanic
mechanical
metal
nut
precision
repair
repairing
repairman
restore
result
rust
rusty
service
serviceman
spanner
stainless
steel
technician
threaded
tool
work
working
workshop
wrench