Cable trays for electric cables or conductors of all types or for optical cables; dividers and covers for the aforesaid cable trays; installation, mounting, assembly, suspension, support, connecting or fastening members for the aforesaid cable trays and/or supports therefor, including: mounting profiles, mounting rails, vertical mounting rails, brackets, pendants, mounting plates for rails, reinforcing gussets, stirrup shoes, adjustable angle shoes, pressure shims, suspension shoes, suspension staples, clamps, locking clamps, shims and spacers, fixing shims, locking plates, supports and extensions for diversion boxes, earth conductor terminal clamps, earth cable support hooks, connection plates, angle connection members, coupling members, rail assembly parts, end caps for the aforesaid profiles and rails, screws, bolts, threaded rods, threaded sleeves, washers, nuts, pins, cotters; identification markers for the aforesaid cable trays