ER50-3 is a copper plated welding wire for gas protection, which can be protected by CO2 or argon rich gas during welding.
ER50-2 is a gas shielded copper plated welding wire that can be protected with CO2 or argon rich gas during welding.
ER50-4 is a copper plated welding wire for gas protection, which can be protected by CO2 or argon rich gas during welding.
ER50-6 is a gas shielded copper plated welding wire, which can be protected by CO2 or argon rich gas during welding.