Over a Century of American Craftmanship
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SST Gravity Chutes
Revolutionary new
gravity chutes address
problems faced by
conventional chutes

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Sentinel
Wardrobe Lockers

Designed to meet
the rigorous demands of
law enforcement personnel

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Outdoor
Advertising
Products

Versatile solutions for
outdoor advertising,
including panel-free frames

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Metal Fabrication
A warehouse of laser cutters,
roll formers and more to
meet your custom needs

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Sentinel Lockers

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Sentinel Lockers is your versatile, secure storage solution, with lockers for law enforcement, military, museums and more.

Tiffin Outdoor

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Tiffin Outdoor is the leading innovator in outdoor advertising. Our customizable billboards stand up to 90-mph winds.

Custom Products

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Gravity chutes, custom formed parts, workstations and more: we provide custom solutions for the workplace and in metal fabrication.