A composite metal containing two or three layers that have been welded together. The welding may have been accomplished by roll welding, arc welding, casting, heavy chemical deposition, or heavy electroplating.

A surfacing variation that deposits or applies surfacing material usually to improve corrosion or heat resistance.

A puddle the is not crowded by slag or an erratic arc.

The uniting of many materials into one body.

Refers to equal coating thickness on the core wire/rod.