What does "soft China" mean?

The prefix of "Soft China" refers to cigarettes with the last three digits of 328, 329 and 330 in the secret code on the package of soft China cigarettes. This secret code can be found on the outer packaging of every soft Chinese cigarette, which is located on the front of the whole cigarette, on the side of Tiananmen Square and on the upper right with the words "Smoking is harmful to health". Soft China is a classic cigarette launched by Shanghai Tobacco Group, which belongs to one of the more popular high-end cigarettes in China. The cigarette tastes full and pure, even and harmonious, with little irritation, moderate intensity, clean and comfortable aftertaste, giving people a refreshing and unforgettable feeling. Its internal technology comprehensively uses the unique technology of China, with exquisite materials, exquisite formula, exquisite packaging, fine processing and precise control to ensure the excellent quality of products.