| 摘要 |
Soldering flux rings are pushed onto both limbs on a U-shaped contact link for making through contact on a printed circuit board, which soldering flux rings are seated on conductor tracks on the top of the printed circuit board after the contact links have been inserted. If the printed circuit board is soldered on the rear side by means of wave soldering, then these soldering flux rings melt and solder the contact links on the top of the printed circuit board 1. <IMAGE>
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