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Zhengzhou Zhongtian Special Alumina Co., Ltd is one of the pioneer companies in China, which is specialized in the manufacture of White Fused Alumina series products and Refractory material in China. And we owned the import and export authorization. "ZHONGTIAN" always follows the operation principle—"Improvement by Science and Technology, Survive by Superior Quality and Development by Credibility and Integrity". In order to make sure the quality of the products ant any period of the producing line, we introduced the most advanced in-line equipments of ball crusher at present and established the separate and standard laboratory. This means we are not only can large-scale and professional manufacture, but also can effectively control the quality of our products. At the same…