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Do you own a jewelry design business—small, medium, or large? Meet CUP CHAIN USA—your private jewelry manufacturing factory! We specialize in soldering, high-quality metal plating for your raw materials, and unique castings. Discover a manufacturing partner that listens to you, offers uncompromising quality, and provides customer service you've never experienced. 🔥 Shop Now and Discover: Over 40,000 bases for jewelry, charms, stone settings, crystals, findings, and tools. Available in 17 different metal platings to choose from. ✨ Custom Design Option: Design custom items with our team of experts, boasting over 25 years of experience