N'ime afọ ndị na-adịbeghị anya, n'ime usoro plastik, ụzọ a na-ewu ewu nke na-emepụta, na-atụgharị plastik nhazi. Mpịakọta mpịakọta, nke a makwaara dị ka ịkpụzi rotary, ịkpụzigharị rotary, bụ usoro ịkpụzi oghere nke thermoplastic. Mpịakọta ịkpụzi malitere na 1940 na United Kingdom, mkpụzi mpịakọta bịara na 188 ...
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