3M 99.9% Pure Copper Wire T2 Copper Red Copper Line Bare Wire Diameter 0.2/0.3/0.4/0.5/0.6/0.8/1/1.2/1.5/1.8/2/2.5/3/4/5 mm
https://www.vogueparade.com/shopping/EN/5/1/1005003446407242/3m-999-pure-copper-wire-t2-copper-red-copper-line-bare-wire-diameter-0203040506081121518225345-mm//