ne visai i tema, bet gal kas zinot/naudojat ka nors is sio lydinio? Kaip 
praktikoje jo atsparumas susibraizymams, odos alergiskumas ir t.t.? 
Konkreciu atveju kalba eina apie ziedus.
Aprasymuose stai ka raso:
1. High hardness---tungsten rings is 7 times harder than stainless steel 
ring and 4 times harder than titanium rings , tungsten rings  hardness can 
match the diamond, it is hard, stunning, adamantine luster and noble .
2. high brightness---Tungsten carbide rings has the high brightness, its 
brightness can match the mirror and after polishing it can shines as gem.
3. high corrosion resistance---Tungsten Rings has the high corrosion 
resistance. by synthetic perspiration testing , it is totally not corrosive 
, not fade and not change in color, not allergic , not rust .