Polystone PP Grey is a type of plastic material that is commonly used in various industrial applications. It is a high-quality, chemically-resistant thermoplastic that is known for its excellent durability, toughness, and resistance to chemicals, heat, and impact. It is often used in the manufacturing of water filtration systems, tanks, pipes, and other components used in the processing and transport of water, chemicals, and other fluids.

Röchling Engineering Plastics, a German-based company, is one of the leading manufacturers of Polystone PP Grey, as well as other plastic materials used in a wide range of industrial applications. They offer a range of products and solutions, including custom-designed components for specific applications, and have a strong reputation for quality and reliability.