... LONG),or Made in Germany(ROTO Brand) Benefits:1.durable, will not rust, rot, warp, or need constant finish maintenance. ... , wind, and snowstorms. 2.slide smoothly,will not make any noise when sliding;3.will not occupy any internal and external space;4.Can make ... much more economic than casement windowApplicable Places: can be used for commercial and residential applications Related pictures for your ...