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"Sunfeel Solder-Free Gold" Receives Certification from National Authoritative Institutions
Sunfeel—the pioneer of the "Solder-Free Gold" category—created the innovative "Solder-Free Welding Technology," making gold purer and more valuable. This achievement has been granted national invention patents and honored with the "China Gold Association Science and Technology First Prize," demonstrating full recognition from national authoritative institutions and establishing Sunfeel Solder-Free Gold's leadership in the industry.
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National Gold and Diamond Products Quality Supervision and Inspection Center
Sunfeel Solder-Free Gold: Purer, More Valuable
Every Sunfeel Jewelry product features a globally unique identification code. You can verify your purchased product's information by querying this code. If no information appears when entering the code, you may have purchased a product not from Sunfeel Jewelry. For any inquiries, please contact customer service at 4007-888-777
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