carborundum - Robuta Search

https://greencarborundum.com/product/green-silicon-carbide-800-for-semiconductor-cutting/

Green Silicon Carbide 800# for semiconductor cutting

https://pt.greencarborundum.com/produto/98-preto-sic-f12-f240/

98% Preto sic F12-F240

https://bigpapaentreprise.com/marque/carborundum/

https://cnhxabrasive.com/products/53c-54c-55c-black-carborundum/

53C 54C 55C Black Carborundum is produced at high temperature in an electric resistance type furnace with quarts sand and petroleum coke.