Enwere ọtụtụ ụdị akụrụngwa na-emepụta tube na-enweghị nkebi (smls) dị ka usoro mmepụta tube nchara enweghị nkebi siri dị. Otú ọ dị, n'agbanyeghị nke mpịakọta, extrusion, elu ịpị ma ọ bụ spinning enweghị nkebi ígwè tube mmepụta usoro, billet kpo oku akụrụngwa bụ ihe a na-apụghịekewa, ya mere billet ...
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