ʻO ka polyurethane kahi mea kemika hou.Ma muli o kāna hana maikaʻi loa a me ka hoʻohana ʻana i nā ʻano like ʻole, ua ʻike ʻia ʻo ia ʻo ka "lima nui plastic".Mai nā lako, nā lole, i ka lawe ʻana, ke kūkulu ʻana, nā haʻuki, a me ka aerospace a me ke kūkulu ʻana i ka pale aupuni, ka poly ubiquitous ...
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