Ropes that are produce by Çelik Halat in a large diameter range from 6mm to 83mm have been used for many years in various sectors such as construction,marine, fishery, petroleum, mining and in elevators, chairlifts, and cranes. Ropes that are produced incompliance with international standarts such as BS, DIN and JIS according to Federal specifications and API specifications have been favored ever-increasingly by the most developed countries in the world and large quantity of the production have been exported.