Dilun, nke a makwaara dị ka polyester, ka a na-akpọ Dilun na China.Atụmatụ bụ ezigbo ikuku permeability na mwepụ mmiri.Ọ nwekwara ike acid na alkali iguzogide na ultraviolet iguzogide.N'ozuzu, akwa nwere otutu nke 75D bụ polyester, dị ka 75D, 150D, 300D, ...
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