PVC Windows 1) PVC-stell co-extrusion,strong 2)anti-age,save ,heat insullation ... 3)good price,good service and good quanlity Style-casement windows ... grain Steel-0.8mm-1.2mm stainless steel put into pvc profiles Glass-5mm, 6mm, 5mm+6A+5mm,6mm+9A+6mm ...