This kind of leather art only exists in Tsekhok County. Traditional skin softening methods include foot-stamping, fresh rubbing, dry rubbing and some other basic abrasive methods. Softened skins are carved with different figures using iron or wooden saws. The collar, cuff and hems of this special winter sheepskin robe are made of various satins. When sewing sheepskin robes, a soft white string is used to sew seven to eight layers of diaphragm for the shoulder seam and underarm dart/underarm seam, while lower-body side seam has fewer diaphragm. The number of diaphragm layers is primarily determined by the ranks of sheepskin. The other slits do not require sewing the diaphragm.