Sanwa 

Established in Tokyo, Japan, in 1948, Sanwa Holdings Corporation is a prominent international provider of steel-based construction materials. The company's diverse portfolio serves both commercial and residential sectors across Japan, North America, Europe, and various other Asian markets. Its extensive offerings encompass a wide array of doors—including automatic, industrial sectional, garage, steel, condominium, and lightweight sliding models—along with their corresponding opening mechanisms. Sanwa also specializes in various shutter systems (such as rolling, high-speed sheet, lightweight, heavy-duty, and window shutters), internal partitions, toilet enclosures, and waterproofing solutions. Furthermore, it supplies architectural elements like aluminum and stainless-steel facades, curtain walls, and postal boxes. Complementing its product manufacturing, Sanwa Holdings provides comprehensive maintenance and service support for its range of storefront, window, exterior, and residential garage door products.