An Iso 9001-2000 Organisation\nLeading Mfrs. & Exporters Of Clay Bonded Graphite Crucible, Silicon Carbide, Crucibles, Isostatically Pressed Crucibles With The Brand Name Of \"Red Diamond\" With Quality Of Alpha And `Sigma\' All Crucibles Are Of High Quality With Homogenity, High Thermal Conductivity. Uniform And High Density & Fuel Saving Used For Melting Of Ferrous And Non-Ferrous Metals Like Silver, Gold, Bronze, Brass, Copper, Zinc, Zamak, Lead, Tin, Cast, Iron, Gun Metal. Minerals & Refractories