樓主: maohuilian
|
多大的螺栓應(yīng)該打多大的孔,這有國標(biāo)嗎?--[請教] |
| ||
| ||
| ||
| ||
| ||
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, 2025-2-5 00:43 , Processed in 0.073051 second(s), 15 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.