Designed and manufactured at our finzone production facility in Shanghai,china, our leading product is the completely frameless, but fully retractable, sliding glass door system, named the frameless glass door. Fully installed with site surveys included your door can be fully installed within 4 weeks from point of order. Surpassing all building regulations and achieving outstanding U value ratings, glass curtain walls are the latest in folding sliding glass door technology. Other products we manufacture and install include the latest innovative bifold patio door system – the ultra slim patio door. Operating in a similar fashion to sliding folding glass doors, they fold and slide, offering both great clear views and accessibility.