Founded in 1992 , Zhengzhou Mine Line Industrial Co., Ltd. is the New and High-Tech Enterprise for refractory material in Henan Province , P.R.China , also is the ISO 9001 - 2000 certified company from 2003 on . 

Based on our own research and develop center , We had produced series of new products successfully in the past 20 years , including as : Yttria Stabilized Zirconium ( YSZ) , Calcium Stabilized Zirconia ( CSZ ) , Titanium Alloy Cast Filler , Ceramic Regenerative Alumina Hollow Ball , and so on .