annealing

coated

component

compression

cover

detector

equipment

factory

flame

frame

furnace

gas

gold

hard

hardware

helical

indicator

indoor

industrial

inside

instrument

iron

man

manufacturing

mechanic

mechanical

metallic

objects

opens

outside

oven

physics

pile

pipe

pointer

pressure

production

reel

roll

sensor

standing

steel

strong

switch

temperature

tool

white

works