Casting, Waxing, Filing and Polishing Aug 22, 2021Royi Sal Jewelry increases its production capacity and capability by providing client services whereas casting, waxing, filing and polishing is now done in-house. Related Posts:Metal Polishing for Different Surface Textures & FinishingThe Different Types of Metal CastingRoyi Sal Jewelry and Sustainability: Ecofriendly and…Thailand's Gems and Gemstone Trade: A Global Hub for…