alloy

apparatus

appliance

automated

automatic

automation

backhoe

building

chips

construct

derrick

device

digger

driller

drilling

duty

electric

equipment

equipments

excavation

excavator

exploration

gear

hammer

heavy

huge

instrument

jackhammer

loader

machine

machines

mast

mechanical

mechanics

mining

motor

ore

outdoors

panel

pickaxe

pneumatic

reinforce

rig

shaft

tech

technological

tool

tools

tower

turrets

working

workpiece