... Stone: Czech stones(Preciosa stones) Plating:Gold plating men's ring,finger ring, rings jewelleryEstablished in 1998, Impression ... zinc alloy, iron, etc.PRODUCTION LINE SPECIFICATION Materialalloy( men's ring,finger ring, rings jewellery )Design More than 10, ... s requirementsTimeline10days for sampling/molding, 25days for mass productionTesting Nickel free, Lead free, Cadmium Free QCIn-house quality ...