dental crucibles are made with fused silica , which is quartz sand fused at 2000 degree with a high purity(>99, 7%)Feature:1, Very low thermal expansion, which confers to our crucibles a very good thermal shock resistance.2, Low sensibility to metallic oxides, which assures a long term resistance against corrosion by dental alloys.our crucibles for flame melting are made in fused silica.
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