1 . high-quality graphite block 2 .size :we can make as customers' request 3 .apply to graphite mould.etc MATERIAL: Extruded Graphite,Molded Graphite,Isostatic Graphite,Vibration Graphite,High density and high Flexural Strength graphite material . (Die molded graphite),High pure extruded graphite,Special carburizing treatment graphite materialCHARACTERISTIC :1.perfect sealing performance , long ...