摘要
Zbengzhou Yufa （Group） Co., Ltd., the largest white corundum manufacturer in China,＂ the enterprise drafting and revising the national standard of white fused alumina abrasive GB/T 2479-2008, one of top 10 corundum manufacturer in Chinese abrasives industry,
Zbengzhou Yufa （Group） Co., Ltd., the largest white corundum manufacturer in China,＂ the enterprise drafting and revising the national standard of white fused alumina abrasive GB/T 2479-2008, one of top 10 corundum manufacturer in Chinese abrasives industry,
