Rational text : propaganda-style for the company rather than a given product :

• description of the company: involved in the manufacturing of various types of chemical products, medicines as well as sodas (碱 jian), also called 小蘇打 (xiaosuda) -> sodas seemed to be new at the time/not so familiar in Shanghai
• emphasis on old reputation and public recognition
• conciliates cheapness and quality
• list of prices for the various products