25 oz Gold Bar Loaf Cast Iron Ingot Mold for Custom Smelting Pouring Melting

25 oz Gold Bar Loaf Cast Iron Ingot Mold for Custom Smelting Pouring Melting Features: Fitment: Fits Approximately 25 oz of metal,ideal for casting gold, silver, copper, aluminum, and more.Suitable for laboratory, school science education. Function: Melting casting refining gold silver copper aluminum brass precious metals. Material: Made of high-quality steel,it has well thermal stability, corrosion resistance and impact resistance, strong acid and alkali resistance, good thermal conductivity. .