The manufacturing process of rubber bands involves several steps: 1. Latex is purified on plantations by straining and filtering, then formed into slabs which are squeezed dry. 2. In factories, the slabs are cut and mixed with ingredients in a Banbury mixer or milled separately. 3. The heated rubber is extruded into hollow tubes, cured on steam-heated poles, then sliced into bands. 4. Sample bands undergo quality tests for traits like strength, stretchiness, and snap-back before market release.