... Excellent abrasion resistanceaaSmoothly openingaaLight weight, easy installationaaLow Maintenance Pneumatic Ceramic Ball ValveExcellent abrasion resistance,Smoothly opening,Light weight, ... ,Cast iron,Csat steel) Gate(304,316,Cr Steel,Ceramic)Applicable mediumApplicable medium:Bauxite slurry, asphalt, catalyst residue, ... wax, slag, wood chips,clay, coal, etc. Pneumatic Ceramic Ball Valve KAIERTONG API