It includes the production of tanning, dyeing and finishing, clothing and other products.

　　tanning

　　With hair hides into the process of fur. Before tanning usually require soaking, washing, meat, softening, acid, water, make skin soft, remove oil and dirt, dispersed skin collagen fibers (see leather). Sheep skin usually adopts the aldehyde - aluminum tanning, wool sheepskin, leather, rabbit skin with Cr al tanning, mink, blue fox, weasel skin generally uses the aluminum - oil tanning. To make the fur soft and clean, it needs to be washed, refueling, drying, moistening, softening, softening, skimming and refurbishing after tanning. After tanning, the fur should be soft, light, thin, heat resistant, water resistant and non greasy, and the hair is loose, bright, and unpleasant.

　　dyeing and finishing

　　Finishing of fur, including dyeing, bleaching, whitening, velvet and leather processing etc..

　　The process of dyeing: fur in the dye color or color change. Standard mink skin with imitation marmot, mink skin color into black and gray. Fur dyeing commonly used oxidation dyes, acid dyes, reactive dyes, acid dyes and direct dyes etc.. The dyeing method has the effect of dyeing, brush dyeing, spraying and dyeing, and preventing dyeing and so on, which can make the wool produce the plane color, the three-dimensional color (such as 10 Fen three colors) and the gradual color. Fur dyeing, bright color, uniform and fast, hair was loose, light skin plate has high strength, no greasy feeling.

　　(2) decolor: under the action of oxidant or reductant, the dark hair is shallower or decoloured. Black, black leather rabbit after fading, turning yellow.

　　(3) whitening: white rabbit skin or beach sheep skin is treated with fluorescent whitening agent, which can eliminate yellow and increase whiteness.

　　The velvet dyeing before or after dyeing, the hair is a chemical treatment (alcohol, brushing formic acid, formaldehyde and water etc.) and mechanical (tensile, bending, shearing, ironing) make the hair is straight, fixed and cut. Merino Sheepskin, muskrat skin etc. can be sheared. After cutting, the hair is required to be flat, loose, glossy, soft and unsplit.

　　Fur leather processing: Fur leather is the fur which is processed on both sides of the coat and the skin plate. According to the different skin plate, there are woolen and glossy leather. The fur face is worn and dyed, and it can be made into suede fur leather. The surface of the meat is made to be made by drying and pressing. The quality of leather is the requirement of hair was loose, shiny leather clothing; because without hanging face wear, thus requiring skin soft, light, thin, uniform color, smooth coating, heat is not sticky, cold brittle, aging resistance, resistance to organic solvents. In 1980s, the annual production of wool leather in Spain was about 8000~9000 million, and the quality of its products ranked first in the world.