Subassembly for a vehicle seat, in particular a fitting

A subassembly for a vehicle seat, comprising:

• a first component and a second component that is mounted for moving relative to the first component, wherein:
• the first component includes one or more interacting regions for interacting with the second component,
• the first component is at least partially locally laser hardened in one or more of the one or more interacting regions and is otherwise unhardened, whereby the one or more locally laser hardened interacting regions are harder than regions of the first component that are not hardened,
• each of the one or more locally laser hardened interacting regions consists essentially of:
• one or more surfaces, and
• for each surface of the one or more surfaces, an narrow region adjacent to the surface, and
• the one or more surfaces are selected from the group consisting of:
• one or more surfaces which form a bearing that interacts with the second component,
• one or more surfaces which form a guide that guides the movement of the second component relative to the first component,
• one or more surfaces which form a toothing that is for interacting with the second component, and
• one or more surfaces which support the second component.