What is the content of this folklore activity?

"Puzai fire dragon" made of wire, bamboo, paper, etc., painted scales, horns, claws, the dragon's head to the end of the dragon up to dozens of meters long. Installed in the dragon body fireworks, firecrackers, rockets up to thousands of pieces, the dragon head and tail of the gunpowder more countless. A fire dragon by thirty or forty bare shoulders youth hand engine, plus drummers, lobsters, goldfish and other people, the whole team of more than 200 people.