1486| 0
|
HG/T 20519.33-1992 管道布置图和轴测图上管子、管件、阀门及管道特殊件图例 |
| ||
手机版|小黑屋|机械村 ( 渝ICP备17010994号-1|渝公网安备50022702001048号 )
GMT+8, 2024-11-27 09:33 , Processed in 0.013923 second(s), 3 queries , Gzip On, Redis On.
Powered by 机械村
Copyright © 2012- Jixiecun.com