The provided illustration demonstrates the steps of manufacturing leather products.
Overall, the process is man-made, and consists of eleven consecutive stages. It starts with hanging the animal skin to dry, and ends by converting it into various leather goods.
Once animal skin is collected, it undergoes an air-drying process. The dry skin is then transported to factories where it goes through washing and soaking. Water and lime are used for washing, while only lime is needed in the soaking stage. Afterwards, a machine is used for flattening the leather before a second round of soaking takes place.
The used material for the second soaking stage is called tannin, which is composed of water and vegetable matter. Polishing then follows the second soaking stage, before transferring the processed leather to another set of factories. These factories incorporate ready-made leather into the process of making multiple products; such as bags, shoes, and many others.