Brass is prepared by melting scrap-metal to approximately 
coal-fired furnace. The raw materials are a mix of many metals namely copper, zinc, lead, etc. in a specified ratio. A flux is also added to remove the impurities. These are molten in a huge container for about twelve hours to produce 350 kilogram of brass at one go. The molten metal is left to cool on basic iron moulds to form strips that are then sent to the casting craftsmen.
