Bolly carbon props were originally made in Adelaide, Australia by Les Bollenhagen and likely still are. I visited Les at his home way back in the 80's in Adelaide, Aus as I was there doing some work with British Aerospace, Australia. Had dinner (tea in Aus) with him and purchased a few racing props from him. I have since lost touch with him but according to his website Bolly props, the carbon props are still made in Aus. (special order) I believe he sold the rights to the mass produced molded nylon props.
Randy Smith would be the best info source about the molded carbon ones