Eke roba bụ ngwakọta polymer eke nwere polyisoprene dị ka akụkụ bụ isi.Usoro ihe omimi ya bụ (C5H8) n.91% ruo 94% nke ihe mejupụtara ya bụ roba hydrocarbons (polyisoprene), na ndị ọzọ bụ protein, ndị na-abụghị roba ihe dị ka fatty acids, ash, sugars, etc. Natural roba bụ ...
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