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Siliconized graphite crucible has the following advantages 

1, long life: long-term use below 1200 degrees, no oxidation or very low oxidation rate & nbsp; 

2, does not absorb water, the surface produces a glass phase protective film. & nbsp; 

3, directly from the 1200 degree environment to room temperature, no cracks, no cracks. & nbsp; 

4. No harmful metal elements are introduced, and the carbonization effect is more ideal.