B21Level 2

SHAPING

GET/api/v1/systems/patent_cpc/nodes/B21

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B21BROLLING OF METAL

B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING

B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

B21FWORKING OR PROCESSING OF METAL WIRE

B21GMAKING NEEDLES, PINS OR NAILS OF METAL

B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS

B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS

B21LMAKING METAL CHAINS

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