... . XD-WD-CW505Feature1. Nice appearance, strong construction, top grade quality2. Water-proof 3 star (5 star is the best)3. CE & ISO ... 20 sets of advanced machines, 2 sets of Computer numerical control machines- Got CE certification, ISO 9001-2008 certification- Concentrate on ... Community, Dalang Town, Dongguan, Guangdong, China 2012 Casement Window - Good Water-proof!