满足了钼坩埚下降法生产大尺寸蓝宝石的需求。
Moreover, the demand of producing large-scale sapphires by the molybdenum crucible through the descent method is met.
难溶金属及制品：高速钢、耐热合金钢、高比重钨合金、钼坩埚等。
Refractory metal and cemented carbides: steel, metal steel, tungsten metal, crucible etc.
难溶金属及制品：高速钢、耐热合金钢、高比重钨合金、钼坩埚等。
Refractory metal and cemented carbides: steel, metal steel, tungsten metal, crucible etc.
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