MNH Tungsten Rings Men Band 6mm Comfort Fit Tungsten Carbide Wedding Band Black Brushed Matte Finish Rings Size 7-13

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Product Description: *Several sizes are available for our tungsten rings:size 7,size 7.5,size 8,size 8.5,size 9,size 9.5,size 10,size 10.5,size 11,size 11.5,size 12,size 13 *Main material components/elements of our tungsten: 1.Our tungsten ring is mainly made of tungsten carbide,content is about 85.5%. Composition of other materials is nickel about 9.5%,tantalum about 1.5%,titanium about 1.5%,niobium about 1%,chromium about 0.3%,others 0.7%. 2.The tungsten materials contain nickel, which is the necessary part,can not be avoided. But our tungsten material is not contain cobalt, so it is harmless. 3.Tungsten itself cannot be changed color,so we need plate it's surface to make it colorful. And if we don't plate,may be some customers who allergic to nickel would appear allergy. 4.Our plating is vacuum plating, not contain nickel. So basically would not appear to allergy which is caused by plating material. Plating material illustration:black is mainly chrome;blue is mainly titanium oxide;golden:the main body is titanium palladium, the surface usually used 18K gold or 18k rose gold. 5.Tips about maintenance: a.The density of tungsten is 8-9M,it is just lower than diamond. (Diamonds are 10 - the highest). Its density, similar to that of gold, allows tungsten to be used in jewelry as an alternative to gold or platinum. its density is 10 times of 18K gold, 4 times of titanium,5 times of stainless steel. b.After the process of the high-throw-mirror, tungsten ring has unparalleled gloss, refraction and texture,it can be comparable with the light of jewelry. If tungsten without plated,it can contact with anything. If plated, please try to avoid corrosive liquid and cleaning agent to extend the time of wearing. **This is the jewelry we carefully chosen for you, we believe that our efforts and outstanding will bring you a perfect shopping experience. ;-)