bovine-derived materials
Bovine and Sheep derived materials
bovine derived material
bovine derived proteins
cattle or sheep-derived materials
chicken derived materials
derived materials from Pigeon
goat and sheep-derived materials
Horse and donkey derived materials
natural biological organism derived materials
natural bone derived materials
ovine-derived materials
porcine-derived materials
HYDROGEN STORAGE ALLOY WASTE MATERIALS AND SCRAP MATERIALS
materials saving and the utilize of materials
replacement of thin materials by thick materials