Graphite Block, Graphite Powder, Graphite Mold manufacturer / supplier in China, offering High Temp 2000° C Graphite Tray for Heat Treatment Precision Machined, High Purity Impermeable Graphite Bipolar Plate with Good Flexibility for Fuel Cell, Graphite Bipolar Plate 0.2mm Pemfc High Conductivity Corrosion Resistant and so on.