Special grade product: 녹색, 황록색, with some cracks and impurities, 투명한, and the weight is above 50kg. 일류 제품: 남옥, 연두빛, 황록색, with some cracks and impurities, 투명한, and the weight is more than 10kg. Second grade product: 남옥, 연두빛, 균열 없음, a little impurity, and a block weight above 5 kg. 제삼 […]
