Jewelry casting equipment | High precision vacuum casting machine improves jewelry yield and reduces precious metal lossIn the jewelry casting industry, almost all factories have encountered the same problem: the same wax mold, the same gold and silver K gold material, standardized operating procedures, peers can stably produce high-quality batches, but their own production lines frequently have defects and scrap. The problems of porosity, sand holes, shrinkage, missing corners, blurred patterns, and uneven thickne···...