Here from same chapter 7 of Enoch:
9. These are the names of their chiefs: Samyaza, who was their leader, Urakabarameel, Akibeel, Tamiel, Ramuel, Danel, Azkeel, Saraknyal, Asael,
Armers, Batraal, Anane, Zavebe, Samsaveel, Ertael, Turel, Yomyael, Arazyal. These were the prefects of the two hundred angels, and the remainder were all with them.
10. Then they took wives, each choosing for himself; whom they began to approach, and with whom they cohabited; teaching them sorcery, incantations, and the dividing of roots and trees.
11. And the women conceiving brought forth giants,
12. Whose stature was each three hundred cubits. These devoured all which the labour of men produced; until it became impossible to feed them;
Enoch is clearly talking about Angels here!