CPC Subgroup Additional Only
B23K 2101/04 Tubular or hollow articles
Full Title
Articles made by soldering, welding or cutting > Tubular or hollow articles
5 direct subcodes
Child Classifications
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- B23K 2101/06 Tubes
- B23K 2101/10 Pipe-lines
- B23K 2101/12 Vessels
- B23K 2101/14 Heat exchangers