Han Shi membrane in South Korea and Toray membrane in Japan were originally established for the research and development of reverse osmosis membranes.

Toray Japan first started research and development in 1968, and successfully developed reverse osmosis membrane, nanofiltration membrane, ultrafiltration membrane, microfiltration membrane and membrane bioreactor. According to different uses, it is mainly made of ultra-pure water in semiconductors. At present, seawater desalination and brackish water desalination are the main methods.

Han Shi membrane was established in 1990, which is the center of R&D reverse osmosis membrane. 1994 successfully developed a reverse osmosis membrane with high desalination rate and Qualcomm content, and passed the certification of FDA of the United States and JHP of Japan.

Which is more expensive, Toray Film or Han Shi Film?

Toray film can be said to be imported or made in China, because Toray film is made in Toray and its shell is made in China. Han Shi is made in Korea. Dongli is a little more expensive than Han Shi. Dongli reduced the operating cost of membrane shell in transportation, but the price difference was not big. The price of Toray film is around 1000- 10000, and that of Han Shi film is around 2000- 15000.

Different models have different parameters and properties, and their prices are also different, including agents. Whether they are first-class agents will also affect the prices. Although price is important, quality is also the key. Please buy from a larger agent to ensure product quality.