Ropes at that time was made from silk fibers, animal fur etc. Idea of making a rope came from vines.
当时绳子是用丝织品和动物皮毛做的。
President always miss the wings, flying millions of raindrops, and even full of love from two Department of silk rope.
思念总是会长翅膀，飞过千千万万的雨滴，连起两根系满爱的绸绳。
Varieties are nylon after silk, polypropylene fiber filament, polyester, nylon monofilament rope.
品种有锦纶复丝、丙纶长丝、涤纶、尼龙单丝绳索。
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