Lourdes Fireworks Factory Malta

[wizard7611]

I found this video very interesting:

https://www.youtube.com/watch?v=6dgLIhwNLFQ

I was wondering how they made their massive multibreak shells, so after finding this, I found out these guys use a thick disk above the lift charge, to protect the contents and the shell itself. You can see how much recycling pyros really do these days. This company has a room almost filled with recycled paper! Lol, at 8:10-8:14, a small lizard was spying on them. Some question I have about this video though would be:
Why do they spike ball shells?
They use a thick wooden disk for the multibreak shells right?

[wizard7611]

Part 3:

https://www.youtube.com/watch?v=zaMOBVUEzog

[wizard7611]

Part 1:

https://www.youtube.com/watch?v=LgeEC5t_HMU

[PyroManiacs]

Do you mean spiking as in wrapping the shells with string for strengthening ? or you mean the "spike" sticking out of the shells?

[wizard7611]

Stringing the shells.

[PyroManiacs]

Yea, thats just to strengthen the case.

[wizard7611]

But on a ball shell? Why don't other companies do that?