ITEM NAME:High Purity 99.9% Fine Grain Graphite Ingot Blank Block Sheet 50mmX50mmX20mm JR #aucsearchbutton #aucsearchbutton:hover { cursor: pointer;.High purity three tenors EDM, high temperature resistant fine grain graphite plate Six surface milling flat. Graphite blocks for six surface milling flat, smooth surface, no saw cut. Graphite content: 99.9%.