Semi-soft packing features high heat dissipation, low resistance, excellent water and air distribution, easy biofilm formation, and bubble-cutting effects. It is made from materials such as polypropylene and polyethylene. It is used in sewage and wastewater treatment projects, supporting equipment like contact oxidation towers, oxidation tanks, and oxidation basins.

The unit diameter is generally Φ120 or Φ150, with center ropes made of plastic or fiber. Specifications can be customized according to the requirements of design departments and users.