9| 0
|
GB∕T 39507-2020 皮革 物理和机械试验 耐磨性能的测定:马丁代尔球盘法 |
| ||
|站长QQ:22646427|Archiver|手机版|小黑屋|查规范网
( 粤ICP备2024184902号-1 )|网站地图
GMT+8, 2025-6-22 00:38 , Processed in 0.177235 second(s), 41 queries .
Powered by Discuz! X3.5
© 2001-2025 Discuz! Team.