ENGINEERED ACCESS SYSTEMS

equipment, devices, components, and work upon, and systems for providing access to, both the exterior and the interior of buildings, bridges, platforms, and other facilities, including work swing stages, and track systems, curtain walls and facades, trolley suspension carriages, hoists, chain suspension assemblies, material handling equipment, and similar items; and devices, equipment, components, and systems for providing containment enclosures for buildings, bridges, and other facilities, including platform enclosures, lead abasement systems, materials recovery enclosures, grit conveying systems, hopper collection devices, and similar items