SINCE 1971 llgenler Ltd. was formed in 1971 to manufacture elevator parts.Today llgenler Ltd. is Designing, Producing and Marketing complete elevator systems under the trade mark of adoor , to the worldwide. For special structures, we design elevators with high experianced architects and engineers which are innovative in their engineering design. adoor offers MRL Machine Roomless Elevators, Hydraulic Elevators, and The Classical Traction Elevators. They can come in different sizes and ...