ʻO ka polypropylene kiʻekiʻe e pili ana i nā huahana polypropylene ma waho aʻe o nā mea maʻamau (ka kaha kiʻi, haʻahaʻa haʻahaʻa melt copolymerization, homopolymer injection molding, fiber, etc.), me ka ʻaʻole i kaupalena ʻia i nā mea maopopo, CPP, nā mea paipu, ʻekolu huahana kiʻekiʻe.I nā makahiki i hala iho nei, polypr kiʻekiʻe ...
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