PEEK (polyether ether ketone), pulasitiki yihariye y’ubuhanga ikoze muri semi-crystalline, ifite ibyiza nko gukomera cyane, kudashyuha cyane, kudatuza no kwisiga. PEEK polymer ikorwa mu bikoresho bitandukanye bya PEEK, harimo granule ya PEEK n'ifu ya PEEK, ikoreshwa mu gukora PEEK profile, ibice bya PEEK, nibindi. Ibi bice bya PEEK by’ubuhanga bikoreshwa cyane muri peteroli, imodoka, indege n'ibindi.
PEEK CF30 ni ibikoresho bya PEEK byuzuye karuboni 30% bikozwe na KINGODA PEEK. Gukomeza fibre ya karuboni bishyigikira ibikoresho ku rwego rwo hejuru rwo gukomera. Fibre ya karuboni ishimangira PEEK igaragaza imbaraga nyinshi cyane za mekanike. Ariko, PEEK yujuje fibre ya karuboni 30% (PEEK5600CF30,1.4±0.02g/cm3) ifite ubucucike buri hasi ugereranyije na 30% bya fibre yuzuye ikirahure (PEEK5600GF30,1.5±0.02g/cm3). Uretse ibyo, fibre ya karuboni ikunze kuba ntoya cyane ugereranyije n'imigozi y'ikirahure mu gihe kimwe bitera kwangirika no gukururana. Kongeramo fibre ya karuboni kandi bitanga urwego rwo hejuru rw'ubushyuhe, ari nabyo bigira akamaro mu kongera ubuzima bw'igice cy'ibikoresho mu gihe cyo kunyerera. PEEK yuzuye karuboni kandi ifite ubudahangarwa bwiza bwo kurwanya hydrolysis mu mazi abira no mu mwuka ushyushye cyane.