65 series aluminium casement window 1.hinge opening. 2.customer size accept. 3.BSI ISO9001, ... CCC,BS6206,TNO EN12150. 65 series dulux casement Window:1. function:security, airtightness, watertightness,wind resistance, rain pervation, noise ... so on.3. material: aluminum alloy, glass, upvc/pvc, plastic, wooden and so on4. colors:all kinds of colors or according ...