HomeDoors by Chris Gordon May 8, 2026 Share Facebook X Linkedin The NW Aluminum 643 provides the visual appeal of classic steel-framed doors while delivering the performance of an aluminum folding glass wall. NanaWall, a market leader in opening glass wall technology, is thrilled to introduce the NW Aluminum 643, a revolutionary folding door solution that blends a steel impression with a durable, high-performance aluminum structure.