C672 Dinghai

Although it was at least five kilometers away, Chen Fei could still feel the intensity of the explosion.

That was the direction of the Oyster Mouth Cannon. During the day, Chen Fei and Ding Ruchang had personally inspected it.

The old Oyster Mouth Cannon was located on a small mountain. It had four 240-mm Krupp cannons installed on it, and from above