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   Zhengzhou Pingyuan Abrasives Co., Ltd. (the original Zhengzhou Pingyuan Abrasives Factory) was founded in 1970鈥檚. It鈥檚 one of the largest manufactures  and suppliers of abrasives and refractory materials in China. The main products are White Fused Alumina, Fused Mullite, Fused Spinel, Brown Fused Alumina, Green Silicon Carbid...