U-channels are ideal installation channels when small quantities of cables need to be installed solidly, quickly and inexpensively without screws. They are made of halogen-free polyethylene-coated steel, in the same grid as the LANZ grid tracks, in a length of 195,5 cm. Each cable tray type performs a different function and comes in various materials such as aluminum, galvanized steel, and FRP. PFLITSCH Wire-tray Trunking is available in zinc-plated or hot-dip galvanised steel as well as in V2A stainless steel and an acid-resistant V4A version, which is ideal for the food industry, for instance. as Mini Wire-Tray. Cable tray systems are engineered support structures designed to route, support, and protect insulated electrical cables used for power distribution, control, instrumentation, and communication.