CPC Subgroup
C03C 25/66 Chemical treatment, e.g. leaching, acid or alkali treatment (dehydroxylation C03C25/64)
Full Title
Surface treatment of fibres or filaments made from glass, minerals or slags > Chemical treatment, e.g. leaching, acid or alkali treatment (dehydroxylation C03C25/64)
1 direct subcode
Child Classifications
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- C03C 25/68 by etching