Due to construction and functional characteristics above described, with the internal reflux column it is possible to get selective the separation of components of extremely complex mixtures, with similar chemico-physical characteristics, not economically separable otherwise.
Uniform numbers in American football are unusual compared to those in other sports. They are displayed in more locations on the uniform; they are universally worn on both the front and back of the jersey; and in many cases TV numbers are displayed on either the jersey sleeves, the shoulder pad, or occasionally on the helmets.
Decorate the complete football player and fans. Football uniforms aren't like a lot of other sports uniforms; in addition to lettering for names, numbers in several different sizes are needed for the front, back, and sleeves/shoulders of football jerseys. Plus, selecting a durable material that can withstand player contact is important.