D707 tungsten carbide surfacing electrode Model: EDW-A-15 surfacing hardness HRC: ≥ 60 
 Description: The core of tungsten carbide welded carbon steel welding electrodes, relying on over-coating of tungsten carbide alloy, welding metal containing 40% -50% tungsten content, the thicker coating, and thus long sleeve, red in the electrode coating after the pieces come off easily, the use of DCRP, the smaller current. 
 Use: strong rock surfacing wear-resistant mechanical parts, such as concrete mixer blades, bulldozer, excavator blade, high-speed sand boxes. 

 D707Ni hardness of pure nickel electrode surfacing surfacing HRC: ≥ 45 
 Description: The pure nickel welding electrodes, relying on over-coating of tungsten carbide alloy, welding metal has good crack resistance and oxidation resistance, the use of DCRP. 
 Application: high temperature oxidation, wear parts wear surfacing material, such as blast furnace bell hopper, sintering Pa teeth and so on. 

 D717A tungsten carbide surfacing electrode Model: EDW-B-15 surfacing hardness HRC: ≥ 60 
 Description: Tungsten welding electrode, the use made of O-H08A steel bar, diameter 3.2mm, built for the 60-80 mesh size, the core content of the quality of welding cast more than 60% tungsten carbide, coated with low alkaline hydrogen-based paint, over-relying on tungsten carbide core welding, welding technology is good, easy slag removal, stable arc welding with direct current, low current, D717-shaped electrode is seamless. 
 Use: strong rock surfacing wear-resistant mechanical parts, such as the three-cone bit teeth grab the back, leaf blowers, power coal drum roll bar candy machine, concrete mixer blades.