Pvc casement window Utmost energy efficiency and insulation provided by the unique 3-cavity and 2-seal design, the thickness is 2.5mm Beautiful and elegant appearance with decorative grids Stronger reinforcement offers higher wind-load resistance Easy fabrication, superb water and air tightness Kinds of glass available: Clear glass stained glass obscure glass Single glazingdouble glazing Normal glasssafety glass Low-e glassreflective glasslamination glass Hardware: imported or china famous brand with high quality Can oem / offer design Certified quality by national and international institution Payment term: t/t or cash Package: hard paper + foam +packing belt