Black4, spol. s r.o. is the worldwide commercial representative for Slovakian firm TopGrafit. Our business interest in Europe, Asia, Australia and North America. We offer a wide variety of carbon and graphite products. Due the excellent thermal stability of the graphite, this material and products made of graphite can be fully applied in the process of primary Aluminum and aluminum semi-products production as well as for casting other non-ferrous metals, melting and heat treatment processes, among other use. A guarantee of the top quality is secured by utilizing the CNC controlled technology in the machining processes and the anti-oxidative impregnation of the graphite material.