In chemical engineering, the filler refers to the inert solid materials installed in the packed tower, such as Pall ring and Raschig ring, etc., whose function is to increase the contact surface of gas and liquid and make them mix strongly with each other.The Pall ring packing was developed to impro

“Raw materials are the foundation, molding is the condition, and firing is the key" is the experience that ceramic workers have summed up from many years of ceramic production practice. This shows the importance of raw materials in ensuring product quality. In order to produce high-quality ceramic p