Medical titanium rods are a type of metal that is implanted into the body. Not only does it not cause inflammation, but the bones also eagerly grow and attach to it. This amazing material is known as the king of the life metals - titanium alloy. Why doesn't our body reject it? The secret lies in the fact that it has a very thin layer of carbon dioxide on its surface. This layer acts like an invisibility cloak, preventing the immune system from detecting its presence and thus avoiding an attack. Even more amazing is that titanium alloy is not only gentle but also very sociable. Its surface microstructure and elastic modulus are very close to those of natural bones, and bone cells particularly like to settle on it, ultimately achieving a perfect fusion of bone and flesh. Besides, in the medical field. Titanium alloy is also a tough guy in the industrial sector. Its weight is only 60% of that of steel, but its strength is no less, and it is extremely corrosion-resistant. From deep-sea manned submersibles to rockets in the sky, it can be found everywhere. This tough yet gentle titanium alloy has you encountered in your life?