|
3503| 0
|
[行业标准] HG 20633-2009-T 钢制管法兰用金属环形垫(Class系列) |
| ||
|关于我们|网站地图|油气储运网
( ICP11007657-3 )
GMT+8, 2024-4-24 22:58 , Processed in 0.022615 second(s), 13 queries , Gzip On, MemCached On.
Powered by Discuz! X3.5
Copyright © 2001-2023, Tencent Cloud.
发表于 2018-5-24 16:11:23
