Does Xuzhou Xuanwu sell hydrogen balloons?
No, hydrogen balloons will explode when exposed to open flames, which is more dangerous. Almost no merchants sell hydrogen balloons, which are usually replaced by nitrogen balloons. Xuzhou Xuanwu market does not sell hydrogen balloons. Hydrogen balloon is a kind of balloon filled with hydrogen, which is used for light bag-like or saccular objects and can float upward by the buoyancy of hydrogen.