a级国产大片在线免费观看專業從事互動視頻_欧美日韩国产主播在线_欧美亚洲日韩理论片在线_中文字幕第二页_国产精品麻豆影院_在線觀看免費三級無碼_亚洲日韩av成人影视一区_(凹凸視頻)久久精品免费_军人野外吮她的花蒂无码视频_中国gay男男av毛片免费看

Meet the GA494-2004 standard; use: firefighters rescue, rescue or daily training. Structure: It is a sandwich rope. The load-bearing part is made of continuous fiber material with high strength, low elongation, good impact resistance and high temperature resistance. Breaking strength: 24.7KN; high temperature resistance: no melting, coking at a temperature of 204 ° C 5MIN environment. When the load-bearing reaches 10% of the minimum breaking strength, the elongation of the safety rope is 6.3%. The product provides inspection reports and 3C certification.