Before revision: The Pakistan-China Fiber Optic Project is an under-construction 820 kilometer long optical fiber cable being laid between the Khunjerab Pass on the China-Pakistan border and the city of Rawalpindi.
After revision: The Pakistan-China Fiber Optic Project is a 820 kilometer long optical fiber cable laid down between the Khunjerab Pass on the China-Pakistan border and the city of Rawalpindi.