 | | B21C 37/00 | Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for (by drawing or extruding, see the relevant groups; by rolling Fulltext... Hierarchy... Expanded...B21B; by working or processing semi-finished sheet metal, profiles, tubes, or wire Fulltext... Hierarchy... Expanded...B21D, Fulltext... Hierarchy... Expanded...B21F; by casting Fulltext... Hierarchy... Expanded...B22; by material-removing machine tools Fulltext... Hierarchy... Expanded...B23; by welding, e.g. cladding or plating Fulltext... Hierarchy... Expanded...B23K; by grinding or polishing Fulltext... Hierarchy... Expanded...B24; by electroforming Fulltext... Hierarchy... Expanded...C25D 1/00); Manufacture of tubes of special shape [2] |
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