Molybdenum seed holder mainly used for sapphire crystal growthing furnace,it’s contact with seed and rod,it between crystal and pulling rod, Before growing. need put seed (small piece of sapphire) in the seed holder and bind WRe wire.melt the raw materials and put down seed to it.

Molybdenum crucibles Sapphire single crystal growth furnaces, quartz glass melting furnaces, rare earth smelting furnaces industrial furnace core containers. temperature environment is generally above 2000°C.