UPVC sliding window is product by APEX company. It is special purpose of sound proof. It is open style sliding window. Sizes & designs are as per customer’s requirement. It is a good quality and color is white. UPVC has key lock/handle, grids, screen and glass. Both products and services, we are always insisting on the pursuit of better quality. If you are interested in any of our products, please feel free to contact us by chat box. Thanks for your attention!