plan = [
    {'Cod': '11518', 'qtdPallet': '176', 'qtdLastro': '22', 'qtdCx': '12', 'Prod': 'Exemplo1', 'FC': '1'},
    {'Cod': '972', 'qtdPallet': '72', 'qtdLastro': '9', 'qtdCx': '24', 'Prod': 'Exemplo2', 'FC': '2'}
]

dados = [
    {'qtdCx': '133', 'qtdUn': '00', 'Cod': '11518'},
    {'qtdCx': '345', 'qtdUn': '5', 'Cod': '13'},
    {'qtdCx': '234', 'qtdUn': '03', 'Cod': '13205'},
    {'qtdCx': '3545', 'qtdUn': '09', 'Cod': '16'},
    {'qtdCx': '1884', 'qtdUn': '03', 'Cod': '978'}
]


def calcula():
    for plax in plan:
        for dad in dados:
            if dad['Cod'] == plax['Cod']:
                print(plax["Prod"])

calcula()