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Product Name: Amazon Cross-Border Black Gold Men's Tungsten Steel Ring European and American Fashion Electroplated Two-Tone Tungsten Gold Jewelry Material description: Made of 857 tungsten gold material, corrosion-resistant, with good hardness and non-allergenic Minimum order quantity: 20 pieces, supports custom orders, bulk orders have favorable pricing Delivery time: Single color without electroplating 5-7 days delivery, single color electroplating 7-10 days shipment, dual color electroplating 15-20 days shipment, inlay style 10-25 days shipment Regarding packaging: Standard packaging is OPP bag packaging Shenzhen Yongzhengjin Jewelry Co., Ltd. is a direct supplier factory jointly established by three manufacturers, specializing in the production of tungsten steel, ceramics, pure titanium, 316L steel, cobalt alloy, black zirconium, Damascus steel, 925 sterling silver, and copper jewelry.It covers jewelry categories such as rings, bracelets, pendants, earrings, cufflinks, wallets, and tie clips.We have our own lathe, grinding mill, CNC numerical control machine, drilling machine, wire cutting machine, quality inspection packaging, and more. Whether you are an OEM or a micro-business, a Taobao or Tmall seller, or a physical store owner, we can provide factory resources and support some in-stock small wholesale orders. For custom orders based on your drawings or samples, please contact us for production lead times.We are committed to producing high-quality jewelry and do not produce low-quality or substandard jewelry products.We strictly control every aspect of the raw materials, quality, and craftsmanship of our jewelry, so you can purchase with confidence! Features of Tungsten Jewelry Tungsten steel and tungsten gold are relatively hard metals in the world; their hardness is second only to diamond.It won't scratch, has a relatively high weight, and produces jewelry with a stronger texture.Tungsten is also a relatively rare material.Nowadays, tungsten gold is gradually being used as a jewelry material and is widely popular in the market. Why choose tungsten? Tungsten jewelry has the characteristics of being durable, resistant to fading and deformation, with a diamond-like luster at a much lower price than diamonds.Tungsten jewelry is a popular accessory in Europe and America nowadays, and young people really love it. Traditional gold and silver jewelry struggle to attract fashion-forward youth who seek individuality.Tungsten jewelry has also become a choice for gifts due to its special properties. How to identify tungsten gold? 1. Determine by weight: The density of tungsten gold is higher than that of titanium steel and other jewelry, so it feels substantial when worn, with a heavy metal feel. If it feels light when worn, you can be sure that the material is not genuine tungsten gold 2. Determine from hardness: The hardness of tungsten is 8-9M on the Mohs scale, close to natural diamond's 10M, equivalent to 10 times that of 18K gold, 4 times that of titanium, and 5 times that of stainless steel, ensuring no wear and tear. You can use a blade or a file to scratch the surface; tungsten gold material won't show scratches 3. Determine from time: Tungsten jewelry, due to its special material, has the characteristics of not discoloring and being highly resistant to wear and corrosion. No matter how long it is worn, it will maintain its luster. If after wearing for a while, the surface oxidizes and rusts, develops marble patterns after production, or fades and turns black, it can be concluded that the purity of the tungsten is not high or it may be mixed with other substances 4. Determine from Appearance: The first two points are to identify whether it is made of tungsten gold material; this point is about how to distinguish whether it is good tungsten gold jewelry.Tungsten jewelry is just like clothes, with the same material and style The price ranges from tens of yuan to several thousand yuan per piece; the key lies in the difference in craftsmanship and attention to detail. A good tungsten jewelry no matter which angle you look at, the color is uniform and cool silver degrees. The refractive index is excellent with no impurities or tiny pinholes resembling a mirror surface. The width and thickness are uniform, and each facet of the ring has the same shape and size evenly distributed. The edges of the ring are smoothly curved without any sharp edges or scratches.