Dooya China Company is one of the most well-known and reliable brands in the world for producing tubular and side-mounted motors for window shutters, automatic rail blinds and automatic overhead shades, which is one of the most reliable brands in the world that was purchased by the French Somfy company. has been Is. Devia is the largest manufacturer of tubular motors in the world and produces motors with quality European products for various European brands. This company has the largest share of the market. The non-failure of engines and the variety of products with the highest quality have become the popularity of this brand in this industry. Caspian Arvin Nora company with Vinorr brand produces some of the products it needs under its own brand from this factory and supplies them in the Iranian market.