You'll typically notice less color while looking at the stone from the top down anyway (appraisers grade by looking at the side), and the metal of the setting further masks the tones.
This equipment adopts the titanium nitride metal mixing techs forming ion gold membrane with good abrasion resistance, therefore it fits for various top-grade decorating membrane.
该设备采用氮化钛表面掺金技术，形成离子金膜层，耐磨性非常好，广泛用于各种高档装饰膜层。
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The core business of HKS is the recycling of ferrous and non-ferrous scrap to create high grade raw materials for metal producers all over the world.