ʻO ke kūpaʻa ʻino ʻana o nā mea kiwi maʻamau -- styrene butadiene rubber
ʻO Styrene butadiene rubber (SBR), i ʻike ʻia he polystyrene butadiene copolymer. ʻO ka hana hoʻoponopono a me ka hana huahana e pili kokoke ana i ka ʻōpala maoli. ʻO kekahi mau waiwai e like me ke kūpaʻa ʻana, ka pale ʻana i ka wela, ke kūpaʻa kahiko a me ka vulcanization ...
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