Warnock Hersey/Div. Intertek Testing Services

8431 Murphy Dr.
Middleton, WI 53562
608-831-1366
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Articles

A lever lock-equipped fire door and jamb is converted to a rim exit device, while maintaining the fire rating.
July 6, 2010
What are the benefits of electrically actuated cylindrical and mortise locks? The door positively latches when it is closed and shut. In fire rated and listed door situations,...
Feb. 1, 2008
Intertek's Perfect Raceway Program trains locksmiths to do field installations of a 3/8” diameter raceway in fire-rated doors. Certified locksmiths can provide their customers...
Aug. 1, 2007

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