Tolerances for fasteners - Part 1, bolts, screws and nuts with thread diameters <grцЯer => 1,6 <kleiner => 150 mm and product grades A, B and C— 18 стр.
Projectors for film and television studios, stage and photographic use; fixing elements for projectors and luminaires, main reflector support, pipe clamp, pivot plug, socket for pivot plug for photo-luminaires and reportage-luminaires— 7 стр.