最全最精的齿轮技术手册

thank you very much

thank you very much

thank you very much

thank you very much

thank you very much

thank you very much

很好很好很好，，顶起。。。。。。。。。。

真是好东西，先下了，学习中

有没有人有齿轮模具设计的文档，先谢谢分享

看过了，确实很有用