activity
building
built
connection
construction
craftsperson
design
equipment
erection
expertise
fabricate
factory
fire
flash
glove
industry
job
lighting
line
making
manual
mask
men
metal
navy
of
place
prefabricate
production
protective
repairing
resourceful
safety
shipyard
skill
smoke
sparks
steel
structure
technology
welder
welding
work
worker
working
workwear