Iyo mbishi yepurasitiki ndeye synthetic resin, inobviswa uye inogadzirwa kubva mupetroleum, gasi rechisikigo kana marasha kuparuka.Oiri, gasi rechisikigo, nezvimwewo zvinoodzwa kuita yakaderera-molecular organic komisheni (senge ethylene, propylene, styrene, ethylene, vinyl doro, nezvimwewo), uye yakaderera-molecular ...
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