ʻO Jinneng550J ka Homopolymer PP he keʻokeʻo translucent particles, non-toxic, tasteless and light polymer, density 0.9 ~ 0.91g / cm³, ʻo ia ka haʻahaʻa haʻahaʻa o nā plastics maʻamau.ʻO ka rigidity maikaʻi, ke kūpaʻa ʻaʻahu, ka paʻakikī kiʻekiʻe, ka hopena wela kiʻekiʻe.