[標(biāo)準(zhǔn)求助] 求JJF 1224-2009 鋼筋保護(hù)層、樓板厚度測(cè)量?jī)x校準(zhǔn)規(guī)范 |
| |
| |
| |
| |
小黑屋|Archiver|計(jì)量論壇
( 閩ICP備06005787號(hào)-1—304所 )
電話(huà):0592-5613810 QQ:473647 微信:gfjlbbs閩公網(wǎng)安備 35020602000072號(hào)
GMT+8, 2025-7-20 03:57
Powered by Discuz! X3.4
Copyright © 2001-2023, Tencent Cloud.