Hexagonal Pentagonal Ring / Nut Multi-sided Ring Pay attention to the symmetry and use the basic metal forging technique of metal ductility. The process can control the width and width of the heel and create the trace of the experiment. Based on the basic techniques, carefully analyze step by step, how to use the annealing and forging techniques commonly used in metal technology to weld the silver alloy of the welding pad with the melting point temperature difference. . The finished product is a handmade ring.