Walnut shell is developed and produced to lightweight filter material aiming at oily sewage treatment. Raw material is based on superior quality thick pecan shell, produced through degreasing, crushing, polishing, thermophilic digesting and many times screening. It is yellowish-brown, not decay, without spot, and has high tenacity
Alumina porcelain media is a type of ceramic polish media suitalbe for fine polishing,mainly for surface finishing of metal applications.The surface of the media is fine and hard, we have produce different shapes and hardness, including polishing balls, cylinder and triangle.