Appearance and Size Requirements of Tungsten Contacts in Cut-out

Appearance and size requirements of tungsten contacts in cut-out:
The appearance of tungsten contacts should look smooth, there are without the existence of burr, rust, discoloration, cold solder joint and other defects; Moreover, its electrodeposition must not have leak plating layer, peeling, de-plating and other issues.
Welds should be uniform. The thickness of the weld is thinner than a quarter of the thickness of tungsten sheet.

Contact surface of tungsten contacts do not exist depressions or remaining machining marks, its roughness Ra is less than 0.4μm.
The size requirements of tungsten contacts should be according to customer-supplied drawings, and specifications, or the dimension agreed by customer and supplier.

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