Industrial Laser Beams, you might assume, are laser beams which are used industrially. However, this is not the case. They are actually cybernetically enhanced, laser guided girders which intelligently move around factories and warehouses doing various jobs.
Industrial Laser Beams eventually retire from work in factories and are re-purposed for domestic use. In particular, they are often used as sentient mailboxes. 
Laser beams which are used industrially are called Manufacturing Luminal Ray Emitters.