Supply of Graphite Items For Single Crystal Furnaces, 118 52-7238-Shell-Hanging-Support-Graphite-Plate 52- 7239-Heater-Clamping-Graphite-Socket 52-7240- Hexagonal-Graphite-Bolt 52-7241-Graphite-Stud 52-7242-Hexagonal-Graphite-Nut-Head