多谢分享!
good book, thanks for sharing.:lol
下载下来看看..............
非常感谢分享,最新的消防泵规范
:):):):):)好好好好好好好好好好好好好
感恩分享那么棒的书 thanks for sharing
好资料!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
顶一下,完成任务!顶一下,完顶一下,完成任务!成任务!
This code is a good updated code for design teams.
NFPA 20 - 2016 Stationary Pumps for Fire Protection