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More sapphire polycrystalline could be put into one crucible for the growing of larger crystals. The crystal from the sappire polycrystaline ingot has little bubbles and better quality. Reduce the production costs. Produce according to the custumers requirements for different diameter and height. We could satisfy all your demands to grow the large sapphire by Ky, Cz, etc. Methods.
Sapphire polycrystaline Alumina
