... operation is manual, gear electric, gas, used in the water, steam, oil medium pipeline. Cast steel are characterized as ... Mounting to ISO529Full port designNace MR01-75Hot tags: Cast Gate Valve, China, mill, manufacturer, supplier, factory, wholesale, cheapCast ... 25, ductile iron, GG 40, GGG50Seat material: NBR, EPDM, Brass or BronzeEnd connections: threaded, weld ends, flangedOperate: hand wheel, ...