INFIWIN Door system are ideal for very large opening, virtually 100%. Unique combination of longitudinal sliding and rotation of each panel enables virtually 100% opening. The door frames are made out of unplasticized-polyvinyl chloride (U-PVC) with no added plasticizers – for stronger, longer lasting, more UV resistant, water resistance, Termite Resistance, Corrosion Resistance and aging. They are very easy to maintain and made out of environment friendly recyclable material.