Two-kicking, that is, double-sounding firecrackers, is a traditional folk product, which is often used in festivals, weddings, festivals and other occasions. Make use of the expansion of gunpowder explosion to fry paper and make noise to entertain the masses. Because there are two sounds, it is called two kicks.

The second push relies on the principle that the bottom powder explodes to the ground and produces a reaction force to lift off. The gunpowder is placed in the paper tube of double-ring firecrackers in two layers, and the function of the lower gunpowder is to send firecrackers to the sky. The upper gunpowder exploded in the air after taking off 10~20 meters.

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Matters needing attention in purchasing double kicks

Should be complete and clear, that is, there is a formal factory name, address, warning words, and clear Chinese discharge instructions, such as whether there are warning words, discharge methods (how to choose location, time, operation mode, etc.). ), and matters needing attention in the process of discharge.

The fuse of fireworks and firecrackers should be free from mildew, breakage and knotting, except for friction and some thread incense (whipping firecrackers are led by paper, but attention should be paid to some adhesive tapes to avoid hurting hands and eyes, etc. ), and the color is generally green.

When buying firecrackers with whipping knots, one should pay attention to the length of the fuse, and the other is the firmness of whipping knots, so as not to loosen them. When paying for a firecracker, never buy a chlorate gun or a perchlorate gun commonly known as Baiyao.

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