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On-site rescue of accidents such as high platforms, cliffs and underground. High-strength aluminum alloy frame with hand-operated winch, winch with rising and falling self-locking function. The manual winch has a rated lifting weight of 1600N, a rope length of 30m, a mass of 47.3kg and a hand-cranking force of 187N. Comply with the "Rescue Tripod Test Outline" standard.