11969| 4
|
閥門磅級(jí)和公稱壓力(壓力等級(jí))的換算表 |
|
|
| ||
|關(guān)于我們|網(wǎng)站地圖|油氣儲(chǔ)運(yùn)網(wǎng) ( 魯ICP備11007657號(hào)-3 )
GMT+8, 2024-12-23 19:08 , Processed in 0.022367 second(s), 12 queries , Gzip On, MemCached On.
Powered by Discuz! X3.5
Copyright © 2001-2023, Tencent Cloud.