1, Tianjin can take the subway with water, but passengers need to cooperate with the security personnel of the subway when they pass the security check to prove that there is no problem with the water before they can pass the security check. Under normal circumstances, passengers need to take a sip of their own water or drink to ensure that there is no problem with the water.

2. Subway security inspection procedure is a necessary inspection procedure for every passenger to enter the subway. Subway security inspection is a preventive measure to ensure the personal safety of passengers. If criminals carry dangerous chemicals or inflammable and explosive articles, they will be stopped when they pass the subway security check.

3. There are strict restrictions on carrying alcoholic liquids in the subway. Passengers are not allowed to carry alcohol, but they are allowed to carry packaged white wine, red wine, beer and other white wines, but the weight cannot exceed 3kg, and they are not allowed to carry bulk white wine.