... /pvc PVC mainly products : pvc sliding/casement window , pvc door and window , pvc doors and windows , top-hung/shutter ... and turn/louver/arch window, toilet pvc door , pvc plastic interior door , pvc folding doorAluminium mainly products:aluminium sliding window,aluminium ... hung window,American style double hung window,aluminium bi-folding window,thermal break aluminium window,internal blind window, ...