... 4mm) Application: Suit for PVC (LSZH/LSOH, FR-PVC, ROHS, PE optional) Plastic extruding . Mainly used in electrical wire , house wire , power cable ... used in electrical wire , house wire , power cable, underground cable etc core wire Sheath. B Type (core ... 4mm) Application: Suit for PVC (LSZH/LSOH, FR-PVC, ROHS, PE optional) Plastic extruding . Mainly used in electrical wire , house wire , power cable ...