Use of natural products or their composites, not provided for in groups {[CPC: B29K2601/00] - [CPC: B29K2709/00],} for preformed parts, e.g. for inserts
Use of natural products or their composites, not provided for in groups {[CPC: B29K2601/00] - [CPC: B29K2709/00],} for preformed parts, e.g. for inserts