air

architecture

are

break

breaking

builder

building

cement

compressed

concrete

construction

dangerous

demolition

destroy

dirt

drill

drilling

dust

employee

equipment

excavator

floor

hammer

hand

hard

heavy

industry

installation

jackhammer

job

kangos

machine

man

manual

mounter

noise

occupation

operator

pavement

pneumatic

power

production

professional

repairing

rock

safety

site

stone

strong

team

tool

uses

wall

work

worker