Cemented Carbide Button Blanks for Producing Tungsten Carbide Grinding Pegs These carbide button blanks are mounted with steel threaded rods to produce tungsten carbide grinding pegs,which is used for sand mils or peg mills,currently we own mature production line for these carbide pegs, all processes are finished in our factory, if you have customized design,please feel free to contact us for furthe offers.