4WT-B means Four Wire, Base mounted smoke detector with Thermal Detector in
Commercial
Similar to 4WT-B
ABPC - Alkyd Base Primer Coating
ABQR - Active Bio Quartz Ring
ABR - Abrasive Blasting and Restoration
ABS - Anti Balance System
ABS - Anti-Ballistic Selenium
ABS - Anchor Bolt Stabilizer
ABS - Acrylonitrile Butadiene Styrene
View all in Commercial