亚洲欧洲日产国码高潮αv_91精品亚洲日本午夜精品_国产青青色在线观看_国产三级免费精品_国产成年女人免费视频播放a_人妻少妇88久久中文_亚洲精品无码一级毛片_色欧美婬色视频在线播_亚洲精品国自产拍影院_国产5毛特效片直播

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.