casnting

OEM casting: 1. lost wax & lost foam casting 2. ISO9001,TS16949 etc. 3. steel & iron castings 4.15 years casting experience TongDa established a Group company named Ningbo TongDa International Group in 2006, in order to strengthen its management upon the manufacture, technique, and trading. It includes 6 subsidiary companies. TongDa Group focuses on the technique of Lost-wax and Lost Foam ...