acetylene

alone

building

construction

dangerous

energy

equipment

fence

fix

flame

flash

floor

gas

gloves

glow

hazardous

helmet

hot

human

industrial

iron

job

labourer

lattice

level

male

man

manufacturing

metal

metalware

metalwork

one

orange

person

production

profession

protection

railing

repair

safety

second

spark

steel

technology

tools

torch

uniform

weld

worker