CPC Subgroup
B21L 3/02 Machines or devices for welding chain links
Full Title
Making chains or chain links by bending the chain links or link parts and subsequently welding or soldering the abutting ends (B21L7/00 takes precedence) > Machines or devices for welding chain links
1 direct subcode
Child Classifications
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- B21L 3/04 by making use of forge or pressure welding