eierkolen, super, stookolie, stooksel, kolen, gas, lpg,...

eierkolen, antraciet, cokes

aardgas, olie, gas, steenkool, kool, aardolie, diesel,...

teer, gas, aniline, alizarine, cokes, plastic

antraciet, bruinkool, cokes, vetkool

eierkolen, antraciet, cokes, briket, gaskolen

cokes