1. Testing and Analysis Center
2. Hebei Normal University
3. Shijiazhuang 050024
4. P. R. China
5. College of Chemistry & Material Science
6. College of Chemical Engineering & Material
7. Handan College
8. Handan 056005
9. Hebei Super Vision & Inspection Institute of Boiler & Pressure Vessel
10. Shijiazhuang 050061