When welding a loop on a jump-ring, the loop can be welded shut with a few welding spots without the risk of damaging the spring. This is a common every day situation that the PUK solves in less than a minute.
Welder used / Verwendetes Schweißgerät: www.lampert.info/en/products/...
Welding for goldsmiths and silversmiths: welding a loop / welding a chain
Schweißen für Gold- und Silberschmiede: Öse Schweißen / Kette Schweißen
Get your own Lampert welder here: www.lampert.info/en/where-to-...
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