NOTIFIER NBG-12系列非编码传统手动消火警报拉铃站介绍说明书 DN-6643:A • 12/29/06 — Page 1 of 2 NBG-12 Series Non-Coded Conventional Manual Fire Alarm Pull Stations DN-6643:A • I-410 6643cov.jpg General The NOTIFIER NBG-12 Series is a cost-effective, feature-packed series of ...