Overview:
Miniature speaker drivers, wiring and cushioned housings are assembled into headphones. Precision valves, diaphragms and seals are combined and pressure-tested to create diving regulators, while reflector bulbs are formed, coated and fitted with their electrical components to concentrate light into a controlled beam.
Release Date : 2009-11-20
Genre : Documentary
Duration : 21 menit
Rating : ⭐ 10/10 (1 votes)
Actors : Lynne Adams