Crystal growth furnace thermal shield

Xi'an Refra Tungsten & Molybdenum Co.,Ltd is one of the best China heat shieldmanufacturers and suppliers, and as a professional company we have our own productiveheat shield factory, welcome to wholesale products from us.Relative to other materials, tungsten & molybdenum used as heat shield have thecharacteristics of low vitalization in high temperature,less pollution to crystal, furnace clean,long service life, not easy to deformation and so on, so it is widely applied in sapphire thermal field. REFRA will take in design concept of high temperature furnaceand apply this concept in sapphire thermal field. Heat shield has advantages of free expansion in high temperature, strong resistance to deformation, so relatively with long service life.