All original and impact strength of the stadium seats are produced from very high specific raw materials. In the production of raw materials in the stadium seats, negative physical and chemical structure of the product scrap material that can create, so weight is not increasing fillers. A negative external conditions in the raw materials used in all of the stadium seats UV stabilizer to prevent the interference, to prevent the discoloration is lightfast minimum 8 colorant paint should be used. All of the stadium seats to spread the shock effect will be linked to at least 3 points. top reinforcement purposes in connection holes, the metal inserts must be found.