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