Foshan sanzong With more than 10 years of constantly dedicated research and development of super-hard material applications.widely applied by many famous enterprises in ceramic,stone and glass industy.been exported to many countries all over the world,widely applied by many famous enterprises in ceramic,stone and glass industy.Yongda products has been exported to many countries and areas all over the would,such as USA,Canada,Russia,Australia,India,Saudi Arabia,UAE,Qatar,Iran,Indonesia,Vietnam,Malaysia,Egypt,Algeria,South Africa,etc.