樓主: danieldfs2008
|
我國(guó)標(biāo)準(zhǔn)件和通用件質(zhì)量太差,,怎么辦,?---[大討論] |
| ||
| ||
| ||
| ||
| ||
| ||
| ||
| ||
小黑屋|手機(jī)版|Archiver|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
GMT+8, 2025-1-17 00:07 , Processed in 0.060630 second(s), 12 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.