... "ventilating needle", similar to the tambour hooks used for decorating fabric with chain-stitch embroidery at that period, is used to ... human or from an animal such as a goat or yak, must be carefully sorted so that the direction of growth ... knots,single knots,double knots,no bany hairs,density,hair color,circumference,hair texture,forehead to nape of neck,ear to ear ...