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https://drivepatents.com/patents/1106256 · 6 Mar 2002
The wheel has a rim (1) and a plate (2) of cold-formed high strength sheet steel, which are connected in the overlapping area by an MIG-solder connection. The solder is an alloy on CU or Ni-B-Si basis. The rim has a material thickness 1,5 - 3,5mm, and a st...