abstract

background

bright

close

construction

cut

dangerous

detailed

electric

electrode

equipment

fabric

fabrication

fence

fire

flashes

foundry

gas

glasses

gloves

homemade

industrial

industry

install

iron

making

manufacture

manufacturing

melting

metal

metallurgy

metalwork

occupation

oven

pipe

production

red

refractory

repair

repairing

seam

smelting

spark

steel

stove

structure

torch

weld

welder

welding

work

worker