... .profiles:LG, CONCH,VEKA 2.characteristic:outward window 3.hardware:handle,friction hinge,transimission 4.color:white 1.features:two panels ... ,casement window,mullion,white2.profiles:LG of ... 5,6,,excellent heat-insulating effect4.hardware:handles,friction hinge,transmission(ROTO or China famous brand)5.steel reinforcement ...