In July 2021, a company in the thermal power industry in Chile asked us for the original filter element to be used for cooling water treatment. We are engaged in the replacement filter element, so we recommend the replacement filter element to the customer, and the use experience can be compared with TAISEIKOGYO, the customer decides Try it out and find that the replacement filter element we produce is not only cheap, but also basically the same as the original one. Since then, I have often repurchased this replacement filter cartridge from us.