My friend We can produce Pyrolytic graphite, TPG, HOPG, raw material and products. Please see one of the properties below: 1. Density: 2.18~2.20g/cm3; 2. Compressive strength: ≥ 83.6 MPa ab; 3. Tensile strength: ≥ 75 MPa ab; 4. Purity≤ 0.02-0.005%; 5. Thermal conductivity: 0.9K/cm. S. Ab, 5× 10-3K/cm. S. C 6. C. T. E: 3.2× 10-6/ ab 7. Specific resistance: 2× 10-4 Ω . Cm ab 0.6Ω . Cm c 8. Air impermeability: He transmissivity<10-10cm2 9. Distance between crystalline grain layer: ≤ 3.42 The biggest sizes we can produce are: Rod: Dia90*5mm Block: 90*90*5, 90*200*5mm Contact me: hiclsun at gmail dot com Pyrolytic graphite TPG highly oriented pyrolytic graphite HOPG