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– In Korea, roughly four types of louvers are in use; 2″, 3″, compound and slim. The 2″ and 3″ types are categorized by the height of the louver, with 2″ representing the height of 50mm and 3″ 75mm. Compound and slim louvers have many subtypes so that they can be adjusted by construction site in case a building contour does not fit.
