You know, gunpowder has long been invented in ancient times.

Zhou Lang just asked the craftsmen to adjust the ratio of gunpowder.

This simple nail bomb can be easily made.

It's just that the triggering method is very dangerous, and it can't be as safe as a grenade.

So there is a fuse slot left on the nail bomb.

Only with the addition of a fuse can the power of the nail bomb be fully utilized.

......

Chapter 1109 of "Zhenguo Silly Shizi" Kill until they are afraid! I am hitting it in my hand, please wait a moment,

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