Our company is a comprehensive producer of "openings" for buildings, architectural facilities, and residences. Since our founding, we have continued to provide products that respond to the enhancement and premiumization of windows, frames, synthetic resin, interior and exterior materials, as well as housing equipment, with a focus on glass. Currently, we offer a wide range of products that include building materials and synthetic resins, and we also handle our own manufactured resin windows "K-WINDOW" and multi-layer glass "Aiji Pair," thus possessing "manufacturer capabilities."