Sim, os portadores de passaporte paquistanês podem transitar pela China por um período de escala de até 24, e você ainda pode obter uma permissão de entrada na chegada e saída do aeroporto. Existem algumas exceções, porém, mas parece que elas não se aplicam a você.
O Timatic, o banco de dados usado pelas companhias aéreas para verificar os documentos de viagem dos passageiros, possui as regras completas:
TWOV (Transit Without Visa):
Visa required, except for Passengers
with a confirmed onward ticket for a flight to a third country within
24 hours. They must stay in the international transit area of the
airport and have documents required for the next destination. (SEE
NOTE 88975)
- This TWOV facility does not apply at Fuzhou (FOC), Huangshan (TXN), Mudanjiang (MDG), Shenzhen (SZX), Urumqi (URC) and Yanji
(YNJ).
-
This TWOV facility does not apply to nationals of Pakistan transiting through Xiamen (XMN).
NOTE 88975: This TWOV facility does not apply when passengers
arrive on a direct flight from USA, Guam or Northern Mariana Isl.
AND depart on a direct flight to USA, Guam or Northern Mariana Isl.
(e.g. JFK - PVG - GUM).
Visa required, except for Passengers with a confirmed onward air,
cruise or train ticket to a third country within 24 hours can obtain
an entry permit on arrival. They must have documents required for the
next destination.
When passengers have obtained an entry permit, they can have multiple
transit stops within China (People's Rep.).(SEE NOTE 88975)
- This TWOV facility does not apply at Shenzhen (SZX) when passengers are traveling to Hong Kong (SAR China) or Macao (SAR
China).
- This TWOV facility does not apply at Fuzhou (FOC), Huangshan (TXN), Mudanjiang (MDG), Urumqi (URC) and Yanji (YNJ).
-
This TWOV facility does not apply to nationals of Pakistan transiting through Xiamen (XMN).
NOTE 88975: This TWOV facility does not apply when passengers
arrive on a direct flight from USA, Guam or Northern Mariana Isl.
AND depart on a direct flight to USA, Guam or Northern Mariana Isl.
(e.g. JFK - PVG - GUM).
Warning:
- All transiting passengers are subject to a check by immigration. Passengers in transit must hold passports or other documents
accepted to enter China (People's Rep.).