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- Veka® is an internationally recognized company creating PVC Profiles for Residential and Commercial Building Applications. Veka® is the world’s leading producer of vinyl extrusions for window, door, fence, deck and rail systems. With 15 plants located in 13 countries, VEKA is on the cutting edge of technology.
- Guardian® Low-E Glass saves energy and keeps homes comfortable year long, regardless of window orientation. It reduces condensation and helps block ultraviolet rays to protect interior fabrics. Choose Seven D Industries Windows made with Guardian Performance Plus II Low-E Glass.
- The latest PPG unit technology is the Intercept® Warm-Edge Spacer System commercialized in 1992.
- Vinyl Source - vinyl extrusion and engineering.
- Chelsea - Chelsea Building Products, Inc. is a leading designer and extruder of rigid vinyl profiles for the window, door and building products industry. Chelsea is a subsidiary of Tessenderlo Group, a diversified chemical business headquartered in Belgium.
- Truth Hardware - Designers and manufacturers of quality operating hardware for windows, patio doors and skylights.
- Amesbury - Amesbury Group is comprised of 11 manufacturing locations in the US and Canada, as well as several component supplier locations in the US and around the world.
- Vision Industries Group, Inc. - is a manufacturer and distributor of quality hardware for a variety of industries.
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