17875| 73
|
喜讯:我国成功研制出1级精度标准齿轮 |
点评
这就是传说中的“牛粪”!!!
| ||
| ||
| ||
| ||
是疑似一级精度的齿轮
| ||
GMT+8, 2025-5-2 07:50 , Processed in 1.012492 second(s), 17 queries , MemCache On.
Powered by Discuz! X3.4 Licensed
© 2001-2023 Discuz! Team.