Complex sentence: Mitsubishi Electric will supply all of the tower's 106 elevators, including three high-speed models capable of travelling at per minute-these will be, at the time of their installation, the world's fastest elevators.
Split into simpler sentences: Mitsubishi Electric will supply all of the tower's 106 elevators, including three high-speed models capable of travelling at per minute. These high-speed elevators will be, at the time of their installation, the world's fastest elevators.