[Yinbang share: participating company Fei Erkang is a qualified supplier of C919 metal 3D printing parts] May 31, Yinbang shares said on the interactive platform, the company's shareholding company Fei Erkang Rapid Manufacturing Technology Co., Ltd. is mainly engaged in metal 3D printing (reinforced manufacturing), and the parts produced by 3D printing can be used in aircraft, rockets, aero-engines and other aerospace fields. Fei'erkang is a qualified supplier of C919 metal 3D printing parts. The company currently holds a 17.27% stake in Feierkang.