那篇文章是那样没错。但里面这篇文章则讲到引擎：

https://3dprintingindustry.com/news/preparations-begun-on-mass-metal-3d-printing-of-airbus-engine-parts-50618/

“The race is on to bring industrial 3D printing into mainstream manufacturing, beginning with the aerospace sector. In the U.S., GE has launched its own mass 3D printing facility for the production of its 3D printed fuel nozzles. Now, in Germany, MTU Aero Engines will begin mass 3D printing nickel alloy borescope bosses for Airbus’s A320neo jetliner, as the company aims to reduce fuel consumption by 15% with new upgrades.”