TANGRA Ltd is a private company established in 1989 and specialized in the field of ventilation, air-conditioning and heating equipment.Today we have own designer bureau, two industrial enterprises, commercial consultative center in Sofia, commercial consultative offices in Varna and Burgas and wide distributors network in the country. Designing and constructing: A team of highly qualified specialists is in charge of working out of the design materials, constructing and introducing of the new products. In aid of them is well appointed aerodynamic laboratory. Industrial activity: The industrial enterprises are built beside the commercial consultative center and the main office of the company. There are detached industrial units for: - Ventilation grilles; - Air duct elements and systems; - Fans and ventilation equipment; - Air handling units and heat recovery units; The equipment is precise and highly productive, which allows maintaining excellent quality and reasonable prices. Quality: In all the activities of the company there is created Quality Management System ISO 9001:2008. Due to the experience so far accumulated and the fruitful cooperation with leading European manufacturers, we have developed a wide - scope ventilation and air-conditioning equipment with excellent quality. The products and services we are offering, the permanent stock and our market network, set good conditions for our customers.