مفت ویڈیو World’s First Rope-Free Elevator MULTI Moves دیکھیں
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Thyssennkrupp develops 'multi', the world's first rope-free elevator system which moves cabins vertically and horizontally in a perpendicular metro-like structure.
Thyssennkrupp develops 'multi', the world's first rope-free elevator system which moves cabins vertically and horizontally in a perpendicular metro-like structure.