Focusing to improve the quality of joints for dissimilar conductors (change.org)

Exothermic welding
system is composed of purposed made mould, weld powder, cleaning brush, flint
gun, mould are utilized to make firm and secure contact. This particular
method is compatible with every material including: copper, galvanized iron,
CCS, bronze, brass, cast iron, niobium, wrought iron, etc.