CPC Subgroup Additional Only
B22F 2302/256 Silicium oxide (SiO2)
Full Title
Metal Compound, non-Metallic compound or non-metal composition of the powder or its coating > Oxide > Silicium oxide (SiO2)
B22F 2302/256 Metal Compound, non-Metallic compound or non-metal composition of the powder or its coating > Oxide > Silicium oxide (SiO2)