PVC pipe 21 three stars of Semnan in the category of electric pipes, fireproof and Unbreakable are located for that reason in front of the pressures of physical resistance is high and having a low weight and build quality, the top has been able to comment much customers to attract them. This PVC pipe has a cross-section of 21 mm, which is in the branches of 6 meters can be produced, and in the event of the need to buy more pipes can be of proper fitting to connect the pipe 21 three-star Semnan to each other used.