Pneumatic slurry knife gate valve Ductile Iron- Gr. 60-40-18, 65-45-12, ... 06 Grey Iron-Class25,class30,class40 ISO9001:20 Pneumatic slurry knife gate valveZD is proud to offer products cast in many ... Steel-LCC,WCC,WCB,4130,4140,8620,8630STAINLESS-17-4,304,316Maganese Steel*Green sand*Olive sand*Polymer sand*Investment ... listed above, pls contact our Sales Department. Pneumatic slurry knife gate valve