Our products can also be used in the fresh water treatment industry. The pig is mainly used to clean the liquid in the pipeline to prolong the service life of the pipeline. The pig launcher and receiver is used to launch and receive the pig, and the pig indicator can detect the status of the pig in the pipeline, and obtain relevant information about the pigs. And our bidirectional pig indicator can continue to operate when workers forget to manually reset, which facilitates maintenance and inspection. In the fresh water treatment industry, sewage can also slowly corrode pipes, causing them to age. So corrosion coupons can also be used here to measure the rate of corrosion. Allow people to detect problems in advance and avoid the risk of leakage. Finally, other chemicals reagents can be injected into the pipeline with our chemical injection.