YD-type carbide (sintered type) composite surfacing electrode, is based on sintered tungsten carbide particles as the main component, the copper-based alloy as a matrix material, and a flux coated flux of a surfacing electrode, carbide hardness HRA reaches 89-91 and is widely used in "remanufacturing" of various wear parts and machinery such as surfacing and repair of wear resistant layers such as oil tool milling shoes, drill pipe wear tape, rubber and leather filing tools.