|
1447| 0
|
Ocr25Ni20高鎳合金鋼管的焊接 |
小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1，京ICP證050210號，浙公網(wǎng)安備33038202004372號 )
GMT+8, 2025-5-8 03:45 , Processed in 0.064713 second(s), 14 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.
發(fā)表于 2009-12-8 13:55:12
QQ好友和群
收藏
淘帖
問題專業(yè)，描述清楚
伸手黨/灌水/看不懂