99 alumina tube, crucible products, mainly used in all kinds of high temperature furnace(including vacuum furnace, wire furnace, furnace atmosphere and so on), thermocouple,industrial raw materials and firing, are widely used in petroleum chemical industry, textile,electronics, instrumentation, machinery processing, military and other industries. The characteristics of:

1, Al2O3 content is more than 99.5%

2, the density of more than 3.9g/cm3

3, resistance to rapid heating and cooling

4, long-term use of 1700 C, 1750 C short term

5, air tightness is good. Widely used in the vacuum atmosphere furnace equipment.