High-quality galvanized cable tray brackets for industrial cable management. 6 per unit, with a minimum order of 1 piece. Shop now & save!Black PVC coated cable tie on 0. Cable trays are used as an alternative to open wiring or electrical conduit systems, and are commonly used for cable management in commercial and industrial construction. Unlike steel, aluminum naturally forms a protective oxide layer when exposed to air, preventing further degradation—making it ideal for marine environments, chemical facilities, and. The cable tray are for hot dip galvanized ladder type cable tray. We want to improve this website so we need your help.