Sanitary Butterfly Valve(ISO9001:2000,CE,TUV certified) 1.DN10-DN200, ... "-8" 2.SS304,SS316L 3.larger size can be customized Sanitary Stainles Steel Manual Butterfly Valve(ISO9001:2008,CE,TUV certificed ... /100% Inspected)YODSN company specializes in producing kinds of sanitary valves and sanitary pipe fittings as wellas OEM producing services for more ...