Polyisobutylene (PIB) ndi chinthu chopanda utoto, chosakoma, chopanda poizoni kapena cholimba, kukana kutentha, kukana kwa okosijeni, kukana kwa ozoni, kukana kwanyengo, kukana kwa ultraviolet, asidi ndi alkali kukana ndi mankhwala ena abwino.Polyisobutylene ndi yopanda mtundu, yopanda fungo, palibe ...
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