3390| 7
|
這圖紙中的270HV3是什么意思?硬度嗎?后面的0.1+0.1 Nht,又是什么? |
| ||
點(diǎn)評(píng)
還是鋼球直徑,反正記不清了,只記得這是一個(gè)測(cè)試方法
| ||
| ||
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, 2024-11-17 05:36 , Processed in 0.059512 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.