Silicon-phosphorus crystal glass beads, composed of polyphosphate and silicate, are sintered into glass. shaped spheres at high temperature.

Silicon-phosphorus crystals are slightly soluble in water, forming a protective film that can be automatically repaired on the pipe wall to prevent corrosion and fouling of metal materials by microorganisms in the water.

In addition, it can penetrate the rust tumor to make it fall off and smooth the pipe wall.