OSB 11.1T*1220*2440 (칠레산) OSB 11.1T*1220*2440 (칠레산) OSB 11.1T*1220*2440 (칠레산) OSB 11.1T*1220*2440 (칠레산) OSB 11.1T*1220*2440 (칠레산) OSB 11.1T*1220*2440 (칠레산)