Recommended model: Twill Classic
 
Yongzi brand is a time-honored brand in the field of warm water bags in China, which has a history of more than 80 years since its establishment, and is a well-known brand for the older generation. In the list of labor protection supplies of state-owned units in the last century, Yongzi brand warm water bags often appear in them. The output and market share of Yongzi brand warm water bags have been in the forefront of China for a long time, and have won the title of "Shanghai Famous Brand Product", but in recent years, the development has been slow, and there is a certain gap between the product and other brands.
 
Yongzi brand only produces rubber hot water bags. Although the tensile strength of rubber material is generally stronger than that of PVC, it is more likely to age than PVC, and it will become brittle after long-term use, and generally only has a service life of about 1 year. And the shortcomings of the Yongzi brand warm water bag have not been solved, in the provinces and cities of the industrial and commercial bureau, the quality supervision bureau of the sampling inspection of the occasional substandard products, water leakage, smell and burrs are the problems of its products.
 
At present, there is no official sales channel for Yongzi brand, and the products are mainly sold through distribution agents, which can be purchased online and offline, and the real and fake can be distinguished by watermarks. According to the different sizes, the price of Yongzi brand hot water bag is between 10~30 yuan, it is recommended to warm the bed before going to bed, and use it while sleeping.