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Kini awọn iyatọ laarin ipele mẹta, fẹlẹfẹlẹ marun, fẹlẹfẹlẹ meje ati awọn fiimu coextrusion mẹsan-fẹẹrẹ
Awọn ohun elo iṣakojọpọ Rirọ, nigbagbogbo ni mẹta, marun, meje, fẹlẹfẹlẹ mẹsan ti fiimu. Kini iyatọ laarin awọn fẹlẹfẹlẹ oriṣiriṣi fiimu? Iwe yii fojusi lori onínọmbà, fun itọkasi rẹ. Lafiwe ti awọn fẹlẹfẹlẹ 5 ati awọn fẹlẹfẹlẹ 3 Ipele idiwọ ni ọna fẹlẹfẹlẹ marun jẹ igbagbogbo ninu c ...Ka siwaju
