Akpan, ọ na-emepụta site bechapu mkpuchi Usoro ma ọ bụ calendering mkpuchi, extruding ma ọ bụ pịa Usoro, na a na-aga n'ihu mpempe akwụkwọ mkpụrụ, iji ịkwanyere na ngalaba-polima resins dị ka isi ngwaọrụ wee tinye dịanyā, plasticizer, stabilizer, colorant na ndị ọzọ inyeaka ihe.
