Heavy industry - Mechanical treatment, drilling machine
Palabras clave
drilling,
drilling machine,
construction,
construction worker,
craftsman,
engineering,
equipment,
fabricator,
facility,
factory,
grinder,
hoist,
industry,
iron,
lobby,
machine,
manufacturing,
metal,
metal plate,
occupation,
power-tool,
production,
protection,
safety equipment,
steel,
technology,
turning,
wagon wheel,
wheel,
work,
men at work