Sanitary Butterfly Valve(ISO9001:2000,CE,TUV certified) 1.DN10-DN200,1/2"- ... .larger size can be customized Sanitary Stainles Steel Manual Butterfly Valve(ISO9001:2008,CE,TUV certificed)Standard:DIN,SMS,ISO,IDF ... , wine, pharmacy, biology and chemical industry. Other Choice Pneumatic valve and Electric valve (100% Tested /100% Inspected)YODSN company specializes in producing ...