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