... quality,excellent service 2,Good workmanship casement window(in-opening and out opening) Materialaluminium profile,.thermal ... ; drawing draft for customer information.Glass TypeSingle glass, Double glass, Clear glass, Tempered glass, Refective glass, ... 5mm,etcsurface treatmentoxidation,electrophoresis painted,mill finish,powder coatedAccessoriesMade in China / Germany( Roto, Germany Siegenia, Kinlong) ...