By using tape-wound or laminated nickel-iron-alloy ring cores " ID-OD (inside diameter-outside diameter) ratio in the range from 0.85 to 0.98; mean diameter 0.5 to 1.5 in. (inches), or less " with ...
Although 22-carat gold is thought to be the 2nd purest form of gold (91.67% pure). I have 22K pure Gold chain approx 4.5 gm and new stylish Ear ring approx 1.5 gm Anyone suggest ...