A brief explanation of this job (Zeh tabi in Persian)
The intestine is used to make suture yarns, musical instrument strings, and tennis rackets strings. The intestine also has an edible aspect that is also widely used for sausages and other foods.
Steps of Intestine processing:
Again the intestine, but this time from its thick head, passes through the inside of bamboo to be completely discharged, also this stage called (Cleansing the intestine second step).
Now what remains after going through these steps is the main layer of the intestine. The processed intestines are divided into bunches of five or ten and they are salted and they are transported to the intestine sorting workshops and kept in the refrigerator.