History
Zhengzhou Haixu Abrasive Co., Ltd. was formally established
July 1999
year 2002
Established Yixing Haiyu Refractories Co., Ltd.
The company passed the ISO9001: 2000 quality management system certification
year 2004
Year 2009
Formed its own foreign trade team and began to expand business in an all-round way
Established Henan Sicheng Grinding Technology Co., Ltd.
year 2010
