Traditional fireworks are made of iron rings with a diameter of about four centimeters. Is this correct?

It is not accurate to say that traditional fireworks are iron rings with a diameter of about four centimeters.

The traditional production skill of fireworks is a local traditional handicraft skill in Shangli County, Jiangxi Province. Drilling, charging and drug introduction in the fireworks production process are all manual operations handed down for hundreds of years.

Fireworks are the general term for firecrackers and pyrotechnic products. The original prototype of fireworks originated from the crackling sound of burning bamboo, which led to the crunchiness of burning bamboo. Then people began to put bamboo into gunpowder, and bamboo burned and exploded in gunpowder. After the invention of explosives, people wrapped gunpowder in paper or bamboo tubes and their necks were opened. After the fuse was ignited, it exploded in the air, detonating other items and fireworks began to appear.

In the Song Dynasty, people filled bamboo tubes with gunpowder, and the gas generated when gunpowder burned cracked the bamboo tubes, making a loud noise and driving away mountain animals. This can be said to be the embryonic form of fireworks. Drilling, charging and drug introduction in fireworks production technology are all manual operations handed down for hundreds of years.