Sistemụ Pentane okirikiri
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Igwe na-afụ ụfụ nke Cyclopentane Series
A na-ejikọta ihe ndị na-acha oji na ndị na-acha ọcha na premix nke cyclopentane site na isi egbe injection nke igwe ụfụfụ dị elu ma tinye ya n'ime interlayer n'etiti mpụta mpụta na mpụta nke igbe ma ọ bụ ọnụ ụzọ.N'okpuru ọnọdụ okpomọkụ ụfọdụ, polyisocyanate (isocy