C42 Wall

Ye Fei was pleasantly surprised by the discovery of the gunpowder for a long time. In fact, although the destructive power of black gunpowder was not that great, but compared to other types of gunpowder, in fact, if black gunpowder was used properly, its destructive power would be terrifying!

To be honest, the black gunpowder's instability was just right for him