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该专利采用热熔化塑料薄膜的方式进行开孔。其具体结构和使用方法按图介绍如下。1是可背负的贮气瓶,通过橡胶软管2与操作部分的手柄3连接,手柄3的另
The patent uses hot-melt plastic film to open the way. The specific structure and use the method described below. 1 is a gas cylinder that can be carried, and is connected with the handle 3 of the operating part through the rubber hose 2, the other of the handle 3