Match with various AC welding machined to realize AC argon arc welding.It is the first and economic choice.

Match with various AC welding machined to realize AC argon arc welding.

It is the first and economic choice for aluminum,mg and alloy especially medium-thickens aluminum plate AC welding. It is argon-shielded tungsten arc welding 

NSA-500 tYPE AC Hand-operated Control Box of Argon-shielded Tungsten Arc Welding