Glaze was a kind of high-grade colored ceramic made of silicon, aluminum, and other metal powders as the main raw materials. It was popular because of its colorful, crystal clear, and bright luster. The following is a poem describing Liu Li: 1. Blue and White Porcelain-Fang Wenshan Blue and white porcelain vase body like porcelain Colorful and picturesque The glaze is as smooth as silk The details are exquisite as if they were hand-carved Glazed products are like works of art It's so beautiful that I can't forget it Dream of the Red Chamber-Cao Xueqin Jia Baoyu saw the Glazed Flower I'm amazed and obsessed The flowers are so beautiful, the texture is so delicate As if it was made by a master, lifelike Glass products have exquisite craftsmanship It's so beautiful and amazing 3 "Ascending"-Du Fu The wind is strong, the sky is high, the apes howl, the white birds fly back to the clear sand of the mournful island. Endless trees fall and the endless Yangtze River rolls down. I'm always a guest in autumn, sad for thousands of miles. I've been sick for a hundred years, and I'm alone on the stage. I'm in trouble, bitter resentment, frosty hair, downcast hair, I've just stopped drinking. The above three poems all described the beauty and exquisite craftsmanship of the glass.