... frequency conversion and power adjustmentSuitable for Steel and stainless steel, Brass, copper, silver, gold and Aluminum, TypeGP ... modelsMaximum input powerMelting ability of common materialsSteel and stainless steelBrass, copper, silver, goldAluminumGP ... and current.8. The timer function: heating time and retaining time: 0.1~99.9second. Medium Frequency Induction Melting Furnace For Copper,Iron,Steel ...