oilcake

seed

husk

sunflower

waste

litter

oil

powder

gray

compacted

natural

fuel

organic

biofuel

spilling

biomass

pouring

falling

pressed

extraction

factory

plant

close

up

slow

motion

recycling

cake

energy

alternative

ecology

heap

pellet

briquette

granule

production

winter

granulated

manufacturing

mix

renewable

ecological

eco

pile

industry

burn

stove

source

concentrate

warm

modern

background