Source:From User"Core Water" Contributions
Publish:2021-05-11 11:21:24
Fireworks are actually similar in structure to firecrackers, and both contain black powder and fuses.In order to achieve a good performance, fireworks and fireworks bombs are filled with a large amount of gunpowder for launch and explosion.Entertainment products that use pyrotechnic powder as raw material to produce sound and light colors.
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