STQ means Safe T Quake Shut-Off Valves in
Commercial
Similar to STQ
ABN - Aluminum Brass Nickel
ABO - Alpha Boat Originals
ABPC - Alkyd Base Primer Coating
ABQR - Active Bio Quartz Ring
ABR - Abrasive Blasting and Restoration
ABS - Anti Balance System
ABS - Anti-Ballistic Selenium
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