Arrangement and Fuel Cell Device

The aim of the invention is to improve an arrangement which comprises several flat components in particular for a fuel-cell device, wherein at least two flat components are welded together by means of at least one weld seam that extends along a weld contour. According to the invention, in at least one weld seam, at least two partial weld seam portions at least partially overlap in a region of overlap along the weld contour.