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a) battery contact exhibiting Ni with Sn, Zn, and minor Co, and gasket exhibiting Si, Ca, C, and O. b) rubbery plug with Si, Ca, and O and glass fibers exhibiting Si and O. c) filament with Ni and Cr joined to thicker wire lead with Ni (acquisition from beyond image frame). d) wick fibers exhibiting Si with minor Al, Ca, and O.
