4571
PC with three bundles of CF ( modulus of 3.36 GPa ) showed 85 % higher modulus of elasticity than the neat PC specimens ( modulus of 1.82 GPa ) .
 PC, GPa, modulus of elasticity, PC, GPa
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 PC, GPa, modulus of elasticity, PC, GPa