Tungsten rings advantage: 1.Hard and dense:about 9 Mohs hardness scale,that's 10 times harder than 18k gold, 6 times harder than tool steel,and 5 times harder than titanium. 2.Permanently New:Tungsten is a extreme hardness metals,So it can not be easily worn out or leave scrathces in daily life.wears for several tens of years,and keep it shiny forever. 3.Never deformed:No matter what the situation, it can maintain its original shape.But, if you're not careful it fell above 1.8M high places, it will be broken. 4.Highest melting point:3400 degrees.
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