Can Chinese trains supporting Pakistan Railways be exempted from passage?

Does the questioner want to ask "Can Chinese vehicles support Pakistan Railways be exempted from tolls?"? Can. "Pak tie" is an Internet term that is a friendly term for Pakistan by Chinese netizens, which means that Pakistan and China are "iron buddies" and "iron friends". As of September 22, 2022, Pakistan has adopted a visa-free policy for China, and Chinese vehicles enter Pakistan for free, so they can be exempted from tolls. Pakistan is located in the northwest of the South Asian subcontinent, bordering the Arabian Sea to the south and the Arabian Sea to the east. India borders the Republic of China to the northeast, Afghanistan to the northwest, and Iran to the west.