国产一级一级特黄女人精品毛片_日韩精品无码卡一卡二_四虎永久在线精品无码视频_日逼视频网站免费_欧美一区二区久久_先锋美女情趣网站在线观看_性生活免费视频第一福利_四虎精品99免费_午夜亚洲精品国产_自拍偷区亚洲综合第一页欧18

· Heavy-duty support sets are mainly used for building (structure) collapse rescue. Usually, support ejector pins are needed before entering the dangerous buildings to support dangerous buildings to protect rescuers and rescuers. .

Technical Parameters:

· A total of 38 sets;

·6 pieces with support main rod (84-124cm telescopic);

· 6 pieces of 61cm extension rod;