Bio-material pelleting appts. - has wear resistant bushes in rows of holes in matrix for long life pan grinding action
DE4120925A1
Cylindrical briquets of fuel material - are stacked in layers and held by adhesive in triangular formations
DE4104502A1
Press for making briquettes from organic material - gives cross=sections other than circular and uses segments of sintered or ceramic material to make selected profile of pressure mould