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

The new fire helmet FTK-B/A complies with the GA44-2015 standard, CNCA-C18-04: 2014 "Compulsory product certification implementation rules fire equipment products", CCCF-XFZB-01 "Compulsory product certification implementation rules fire equipment firefighters Personal protective equipment products. Impact absorption performance: The maximum impact force is ≤3780N, the shell does not fall off, the cap is not damaged or broken, and the connection mechanism of the cap to the cap is not damaged or broken. Impact acceleration performance: the maximum impact acceleration at the top of the cap is ≤150gn; the maximum impact acceleration at the front of the cap is ≤400gn; the maximum impact acceleration at the side of the cap is ≤400gn; the maximum impact acceleration at the rear of the cap is ≤400gn. Combustion resistance After the fire source leaves the cap, the cap flame self-extinguishes within 5s, no flame burns through to the inside of the cap, the cap does not touch the head mold, and there is no obvious deformation, cap hoop, cap support, buffer layer There is no obvious deformation and damage to the squat belt, and no parts are ignited or melted.