Rubber is a very useful material. It is processed(made) through some stages. First latex is collected from rubber plants. It is a milk-white liquid substance. The collected latex is sent to a factory in containers. Then it is mixed with different kinds of chemicals. After a few hours it turns into a rubber slab. The slab is pressed with a roller to make it thin. It is then cut into small pieces. Thus sheets of rubber are made. The rubber sheets are sent to a smoke-house for drying. It is necessary for the preservation of the rubber sheets for a long time. Afterwards, the dried pieces of rubbers are tightly packed in bales. At last the packed bales are sent to market for sale. They are also exported to different countries of the world.