Immortal Weapons Manufacturer

During the ancient war, the gods were silent. The young man Chen Tian was reincarnated from the underworld to the world of immortality. He originally wanted to cultivate immortality steadily and live forever. Unexpectedly, he felt the strong malice of this world and was trapped in a small place. It doesn't matter, I develop slowly. First, I will make some civilian products to exchange for training resources. If there is a war, I will sell weapons. It was originally to support the family, but somehow the business grew bigger and bigger, and gradually became the largest material manufacturer in the world.