Self-sealed sliding rail duct KOS type is designed for exhausting car fumes by means of passable balance suction extractor OBP type moving along the duct. Moving of the extractor takes place through elastic pipe nozzle ended, tightened on car exhaust pipe. Sliding rail duct is equipped with balance regulator which enables raising to the starting point after finishing the work. Fumes extractor ALAN type is designed for exhausting fumes made by exhausting systems of cars during engine tests,[...]