The flow chart illustrates the processing of making leather items.
Overall, it can be seen that there are mamy stages of the production of many stuffs from leather which are made by animal skin, strating with drying it and experienced many stages to be the final products of different leather stuffs.
Looking at the process, the leather is derived from animal skin. To begin with, animal skin is dried and transported to the factory. Then, the leathers will be washed by some chemical substances such as water and lime to dimish the dirty. After that, it continues to be soaked in lime and flatenned by a machine to be more thinner.
At the following stages, this is the second time that the leather is soaked but in another compound of tannin (included water and vegetable matter). Thus polishing the leather, it become a semi-finished product, followed by be transports to another factory to finish the remain stage to make different goods from animal skins like: shoes, balls and leather bags.