哈哈哈，新找到的几个3D封装网站

https://www.3dcontentcentral.com.cn/
https://grabcad.com/library
https://componentsearchengine.com/
https://www.snapeda.com/home/
https://componentsearchengine.com/
https://www.ultralibrarian.com/
https://www.datasheet5.com/