TY  - BOOK
AU  - He,X.
AU  - Chen,F.
AU  - Chen,X.
TI  - PTC effect carbon black filled polypropylene
UR  - https://drive.google.com/file/d/1KqFn6kjBEAO5C_AMci-SZtPdCMj57GTT/view?usp=drivesdk
ER  -