... > objects > physical objects > matter > materials (matter) > natural materials > plant-based materials > wood > wood chip > fuel chips

... > objects > physical objects > matter > sources of energy > fuels > solid fuels > fuel chips

... > properties > role > role related to effect > sources of energy > fuels > solid fuels > fuel chips

... > objects > physical objects > matter > sources of energy > fuels > vaihtoehtoiset polttoaineet (fi) > biofuels > wood fuels > fuel chips

... > properties > role > role related to effect > sources of energy > fuels > vaihtoehtoiset polttoaineet (fi) > biofuels > wood fuels > fuel chips