AS A MANUFACTURER AND AN EXPORTER OF GRINDING MEDIA,TONG YANG METAL IND CO.,LTD HAS BEEN ENGAGED EXCLUSIVELY IN THE FIELD OF IRON AND STEEL CASTING INDUSTRY IN KOREA WITH A LEADING ROLE FOR OVER THAN 39 YEARS SINCE ITS FOUNDATION IN 1960.WITH A PRODUCTION ON MELLEABLE CAST IRON IN THE BEGINING,VARIED PRO-DUCTS OF DUCTILE CAST IRON,SPECIAL ALLOY CAST IRON,AND STEEL BALLS HAD BEEN DEVELOPED AND SUPPLIED TO OUR CUSTOMERS, ENJOYING GOOD POPULARITY ON HIGH QUALITY GOODS.