... thyristors.2 Molybdenum Tube are used as mounting material for power semiconductor devices.3 Molybdenum plate are used as ... Series A: Molybdenum Series, contain molybdenum plate/sheet& molybdenum bar/rod, molybdenum wire, molybdenum electrode, molybdenum rolling plate, ... Tungsten Series, contain tungsten rod, tungsten wire, tungsten bar, tungsten plate, tungsten sheet,tungsten screw/nut/bolt, tumgsten ...