A na-ejikarị polypropylene ọkwa ahụike na polyethylene mee sirinji ndị a na-atụfu ihe.Nhazi nke ngwaahịa n'onwe ya bụ mkpara isi, piston, jaket, na agịga injection.Ethylene oxide na-agbapụta ya ma bụrụ nke na-adịghị mma na enweghị okpomọkụ.N'izugbe,...
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