900MPa high-strength copper plated welding wire is used for welding 900MPa high-strength steel and low-alloy structural steel
TH550-NQ-II is a high-strength weather resistant steel copper plated welding wire, protected by rich argon gas.
ER50-D is a high toughness copper plated welding wire, and the shielding gas is rich argon gas.
ER55-Ni1 is a copper plated gas shielded welding wire for low-temperature steel.