lol, this is a very interesting story: 1. Boeing recently discovered that a batch of titanium alloys used on its aircraft are of substandard quality, which were supposed to be produced by a Chinese company, Shaanxi Hongyuan aviation forging technology company. 2. Chinese companies said that they did sell a batch of titanium alloys to Turks in 2019. Turks re-sold them to Italians, and Italian companies re-sold them to Americans. The titanium alloys produced in China is qualified. 3. The Italians said that they had purchased a batch of titanium alloys from the Turks as well as Indians because the price was very cheap; And Italians used the Chinese titanium alloys for themselves, and sold the titanium alloys from India to Americans. 4. The batch of titanium alloy produced by the Indians was actually aluminum alloy because of its lower cost, but the Americans did not find any problems during quality inspection. It is said that someone used forged reports. 5. Now the titanium (aluminum) alloys from india have been used in many of Boeing's products, not only in civilian products such as the 737, but also in Boeing's spacecraft and military aircraft such as the F15......