Wiring trunking 40x40 (2m). Electrical installation ducts are used to distribute and protect electrical cables in wall installations. Thanks to a specially designed lock, wiring trunkings ensure reliable closing of the cover and the possibility of easy access to wires. Wiring trunkings have high mechanical strength at low and high temperatures. The most modern technology is used for their production, which, combined with the highest quality raw material, gives a durable and reliable product with a smooth and aesthetic surface that is easy to keep clean. Electrical installation channels can fully cooperate with existing electrical installation systems on the market. PVC used for the production of electrical installation strips is characterized by the fact that as a material it has a high mechanical strength factor and excellent impact properties, as well as low relative elongation. It is moderately flexible when stretched, and highly resistant to pressure. It is possible to easily weld, heat-weld and glue PVC.