N'ebe a na-emepụta ihe siri ike, ịkpụzi injection na-eguzo dị ka usoro nkume nkuku, na-agbanwe plastic raw ka ọ bụrụ ọtụtụ ihe mgbagwoju anya na arụ ọrụ. Dị ka onye na-emepụta ihe na-emepụta ihe na-emepụta ihe, plastik engineering, polymer composites pụrụ iche, na plastic alloys, ...
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