July 1999 - the predecessor of the company (Ningguo YACHEN Abrasives Co., Ltd.) was established;
July 2007 - Ningguo Zhongyi wear resistant material Co., Ltd. was established;
2010 - the company passed ISO9001-2000 certification.
July 1999 - the predecessor of the company (Ningguo YACHEN Abrasives Co., Ltd.) was established;
July 2007 - Ningguo Zhongyi wear resistant material Co., Ltd. was established;
2010 - the company passed ISO9001-2000 certification.