Chapter 790: Not an Accident

ious compression forging method to complete the fusion. That was a simpler way of fusing, relatively easy to master. 。But he switched to spin forging when it reached a certain state, and the difficult...testing device was larger than Tang Wulin could have imagined, looking like a small hill. 。The surface has over thirty striking areas, each with a different size and shape. 。"Strength testing is compr...