Ịkpụzi ihe ọkụkụ, nke a makwaara dị ka ịkpụzi igbu egbu, bụ usoro nhazi rọba na-etolite ngwa ngwa.N'oge Agha Ụwa nke Abụọ, a malitere iji usoro ịkpụzi ihe na-emepụta vial polyethylene dị ala.N'ọgwụgwụ 1950s, na ọmụmụ nke elu-density polyeth ...
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