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|1. (WO2018124253) STRUCTURE JOINED BY NICKEL BRAZING|
|Applicants:||T.RAD CO., LTD.
|Title:||STRUCTURE JOINED BY NICKEL BRAZING|
The purpose of the invention is to provide a multi-plate oil cooler or the like that has a high bonding strength with an inner fin and that can suppress the amount of nickel brazing filler used even when a ferritic stainless steel having poor wetting with the nickel brazing filler is used on the plate. A multi-plate oil cooler or the like has a plate 3 made from a ferritic stainless-steel plate bonded to an inner fin 10 made from a pure iron plate or a carbon steel plate by nickel brazing.