How ER70S-6 Welding Wire Better than any Other Welding Cord? How ER70S-6 Welding Wire Better than any Other Welding Cord? weldermetals.com PRODUCTS Click to see more details about our products. Learn More MIG Welding Wires MIG welding wires are mainly used for welding Stainless steel , Aluminium alloy , or Nickel alloy . An appropriate a