12| 0
|
HB 7686-2001 使用温度高于425℃的MJ螺纹自锁螺母通用规范 |
| ||
|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, 2025-8-27 00:49 , Processed in 0.162039 second(s), 42 queries .
Powered by Discuz! X3.5
© 2001-2025 Discuz! Team.