... consultation and after-sales service to our customers . 3.graphite block and rods is used in precision tools , aerospace industry , war ... , graphite furnace nail, graphite trestle, graphite tool , mould .etc 5. material: 6. Block size : (50-1000mm)x(50-1000mm)x(50-2000mm) Rods size ... , low coefficient of thermal expansion , minimal wettability to molten metals fine/small size Carbon Graphite Rods