Vintage Elektrolyt-Kondensator RFT Typ TGL 9089 Elyt 220 µF / 350 / 385 V, NOS | eBay
Zinc-nickel plating solution - Zinc electrolyte with higher corrosion
Strip electrode, nickel anode/electrode/sheet metal 25 x 150 mm, pure nickel, as anode/electrode (2.5 x 15 cm) for nickel electrolytes/electroplating, nickel-plating, nickel anode, plate electrode S, : Amazon.de: Business, Industry & Science
File:Elektrolytische Vorgaenge im Nickelelektrolyt.gif - Wikimedia Commons
Free-Nickel 2000 ml – Shiny Nickel Electrolyte for Home Use : Amazon.de: DIY & Tools