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Lift maker Kone has developed an ultra-strong, carbon-fibre rope which will allow elevators to go higher than is currently possible with conventional steel ropes.

The weight of steel cables means it is not feasible for elevators to travel more than 500m (1,640 ft) in height. Kone's carbon fibre rope weighs a seventh of the steel cables. They are more energy efficient and make it possible for lifts to climb up to 1km (0.6 miles).

麻豆官网首页入口 Click's Lara Lewington went to Kone's underground testing facility to find out more.