Detailed Product Description

The earliest human use of cast metal records have been blurred, but we can speculate: the early hunters sitting around the fire, fall into a copper block coal, copper melting and flowing, just like a flashsmall streams, Once cooled, the flash of heavy objects, it becomes hard, forming a new shape.
Is likely that early people see this phenomenon repeatedly occur, then they are looking to collect the copper block, and threw them into the fire, to see the flash streams slowly outflow. Some people imagine a shape in the sand above, and let the metal flow into, and perhaps turned into a spear. Since then, the metal casting experience for dozens of centuries until today.