... openingaaLight weight, easy installationaaLow Maintenance Pneumatic Ceramic Ball ValveExcellent abrasion resistance,Smoothly opening, ... ) Gate(304,316,Cr Steel,Ceramic)Applicable mediumApplicable medium:Bauxite slurry, asphalt, catalyst residue, ... mud cement, concrete slurry, mortar, cement, paraffin wax, slag, wood chips,clay, coal, etc. Pneumatic Ceramic ...