B29C 67/205

Shaping techniques not covered by groups [CPC: B29C39/00] - [CPC: B29C65/00], [CPC: B29C70/00] or [CPC: B29C73/00] for porous or cellular articles, e.g. of foam plastics, coarse-pored {comprising surface fusion, and bonding of particles to form voids, e.g. sintering}