1) Nominal diameter Length tolerance (mm): a) Dia430 x 350mm ;Dia 100x250;Dia135x250;Dia150x250;Dia200x250;Dia250x400;Dia330x320;Dia300x400;Dia350x400;Dia450x400 b) Dia580 x 350mm c) Dia600 x 350mm d) Dia700 x 350mm e) Dia900 x 350mm f) Dia1000 x 350mm g) Dia1200 x 350mm h) Dia1400 x 400mm i) 400 x 400 x 1800mm 300x100x80; 320x120x120;410x120x120 j) 500 x 500 x 2050mm k) 525mm x 200mm to 535mm x 200 x 2500mm 2) vibration-molded, carbonized or graphitized under precise technical control, and machined to specific shapes for various purposes. 3) Applications: casting molds for railroad wheels; heat exchangers for chemical industries; electrodes and linings in some industrial furnaces (carborundum furnace, graphite furnace,etc. metallurgical furnace, resistance furnace ); cathodes in aluminum electrolytic cells; etc.