... and technology by tungsten and molybdenum crucibles, ... of our sintered tungsten crucile. 4. ... Tungsten crucible and tungsten tube for sapphire crystal growth furnace- Tungsten ... side shields, tungsten down shield, tungsten bottom shield, ... growth furnace- tungsten stander, tungsten supporter, tungsten crucible Pallet ... growth furnace- tungsten seed holder or ... Ltd can produce tungsten crucible for sapphire ...