 
 		 
 		 
 		 
 		 
 		 
 		| Parameters | Unit | Technical Requirements | 
|---|---|---|
| Density | g/cm³ | 1.9 ~ 2.1 | 
| Standard Value of Tensile Strength of Elastic Modulus | GPa; MPa | > 45 > 750 | 
| Elongation at Break | % | > 1.6 | 
| Coefficient of Longitudinal Thermal Expansion | x 10-6/°C | 1.66 | 
| Alkali Resistance & Tensile Strength Retention Rate | % | ~12 > 75 |