... openingaaLight weight, easy installationaaLow Maintenance Pneumatic Ceramic Ball ValveExcellent abrasion resistance,Smoothly opening,Light ... 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 ...