Zhengzhou Yuhang Abrasives Co.,Ltd. was established in 2004,with 9 years? rich experiences of manufacture and foreign trading, Yuhang has becomed the main manufacture of white fused alumina and other abrasives production in China,under ISO 9001, our production has been strictly controlled .we have our own factory and state-level laboratory,Yuhang Abrasives is your right choice .