The wool spinning technique is a special weaving process. It first soaks wool, camel hair, etc. with hot water, then squeezes it, and uses sticks to roll and rub the wool together to form a non-woven wool fabric called "felt". Felt was called "" or "" in ancient times. As early as the Neolithic Age, my country had the technology of rolling felt with sticks. Zhou Dynasty historical records: felt is wool, rubbing wool or felt. Jia Sixie's "Qimin Yaoshu" during the Northern Wei Dynasty (386-534) stated: "When making felt, it does not need to be thick or large, but only tight, thin and evenly balanced." It can be seen that the manufacture of felt was already quite common at that time. Entering the Tang Dynasty, the use of felt became more common. The saddle felts of Yuanzhou (now Gu County, Ningxia), Lingzhou (now Lingwu County, Ningxia), Ningzhou (now Ning County, Gansu), and Fengzhou (now Wuyuan County, Inner Mongolia) were all famous in the northwest. According to the "New Book of Tang", the Tubo Kingdom (located in the present Qinghai-Tibet Plateau) was also famous for red felt and rosy felt, and tribute was paid to Chang'an. At present, the main production areas of felt are concentrated in Sichuan, Gansu, Qinghai, Inner Mongolia, Ningxia and other northwestern ethnic minority areas. According to their uses, they can be divided into multiple varieties, including kang felt, cushion felt, prayer felt, inner felt (surrounded by the inner wall of yurts, etc.), felt (surrounded by the outer wall), colored felt (made of colored wool), embroidery (decorated with embroidery), cut felt (cut into three-dimensional shapes according to the outline of the colored pattern on the felt), stove felt (placed next to the stove), etc. Felt can also be used to sew shoulder bags, saddle bags, sundry bags, etc., which are indispensable necessities in the daily life of northwestern ethnic minorities. Dongxiang Autonomous County is located in the southwest of central Gansu Province. Felt rolling is a must-have item on the kang for Dongxiang families. As early as the Yuan Dynasty, the felt rolling craft appeared in Dongxiang. It was introduced from Central Asia by the Sarta people, the ancestors of the Dongxiang people. Historically, this skill has been spread throughout the autonomous county, and it is most prominent in Longquan and Dongling townships. Felt rolling is a traditional craft of the Dongxiang people. Its processes include wool selection, fluffing, shaping, washing, etc. There are many types of felt, including spring felt, sand felt (made of goat hair), autumn felt and cotton felt, among which autumn felt and cotton felt are the best. Felt can be divided into four-six felt (4 feet wide and 6 feet long), five-seven felt, single felt, worship felt, etc. according to size, and can be divided into white felt, flower felt, red felt, tile green felt (made of a mixture of black and white wool) according to color. In addition, felt can also be made into felt hats, felt shoes, felt saddles (for padding saddles), etc. Dongxiang felt is famous in the northwest for its softness, comfort, symmetry, cleanliness, beauty and durability, and is deeply loved by people of all ethnic groups and pastoral areas. Because of this, it has become one of the important dowry items for girls when they get married. With the development of society and the changes of the times, the felt making process has been impacted by modern textile technology and is almost lost. The felt rolling technique is in urgent need of protection. (No pictures available, please provide them.) (No pictures available, please provide them.)