... vacuum furnace insulation 2.good quality of graphite felt 3.Carbon felt content above 99% 1.Products of carbon ... insulation materials, etc.)3.Providing graphite moulds, molds, graphite felt, graphite foil, graphite rod, graphite sheet, utensils, crucibles ... graphite rings ,graphite bearings, graphite leaf, etc..6. Providing carbon felt, carbon cords,graphite power,graphite felt, compound carbon felt of ...