Pig iron electrode, cast iron electrode, the vernacular spoken pig iron electrode, pig iron welding and wrought iron is mainly based on the carbon content is Domestic adoption of various manufacturers of J506, 308 welding, it is important to cast iron equipment welding pig iron (general factory cast iron equipment) including body, base, shell crack crack, fracture welding repair is often used in special dedicated of WE777 special cast iron electrode welding. Of WE777 Special application of cast iron electrode Almost all of the cast iron base material suitable for the full range of cold welding the welding process, can be welded, and it is easy to achieve the iron and carbon steel welding of dissimilar solve such as breakage of the base body, cracks, wear, fill hole defects after welding can be machined many occasions in the engine casing, cylinder head, the machine base casting gear teeth and other types of iron castings.