1, gun barrel, the paper should be harder and thicker, and kraft paper is the best. Then roll it up by hand. Make a pipe, and then glue the joint.

2. Fill the soil, find some soil and plug the other end of the rolled barrel. The soil should not be too wet, it will damage the barrel. After the soil is filled, the foundation of the gun barrel is sealed. ?

3, loading gunpowder, loading all kinds of gunpowder into the barrel that has been sealed. This process should be cautious. Then add a fire line inside, and then seal your mouth with earth.

4, labeling, cut the designed icon paper into the same length as the barrel, then roll it around the barrel and stick it on. Different types of barrels are matched with different stickers. Used to distinguish their categories.

5. Color and shape of fireworks: It is composed of "bright beads" containing various gold elements, which explode and spread in the air. Combustion can produce various color effects according to different chemical elements, which looks like an open circle, but the time, brightness and size of bright beads can be adjusted.

6. If the bright beads are made very large and the burning effect in motion is dragging a long tail, then the overall effect is not made up of points, but a spherical effect made up of strong lines or strips, so it looks like a blooming flower instead of a circle, which is another most common effect.