Back in the underground laboratory, Xia Lei took out the box which had been assembled from the pieces of ancient alloy and put it on the worktable. 

The assembled box was a square box, and each side was 12 centimetres long, just a little shorter than the palm of his hand. He could grab it with one hand. It was metallic, but very light — at this size, the box did not weigh over 500 grams. Xia Lei estimated that the box would probably weigh 500 grams if he found the last alloy piece and joined it together with the other pieces. 

It was extremely strong, very light, and could absorb the electromagnetic waves emitted by radars without any additional coating. In other words, no radar on Earth could detect its existence. This material was the best and the most excellent for making a fighter plane due to these characteristics. 

Any country would be very interested in this sort of material, and this was also why China saw the Alloy X Project as a very important one. However, mass-producing this alloy was going to be very difficult...