Blue glaze, also known as "blue glaze", "offering blue glaze", "blue glaze". Created in the Yuan Dynasty, the most outstanding blue glaze should be a bright blue glaze, its color is pure, like a deep blue gem, can be called the top of the monochromatic glaze porcelain. Clear as a lake, bright as a gem. Blue has a refreshing power, both like a quiet ore treasure, but also like a vast starry sea, deep and mysterious.