Butterfly Valve Wafer Type Design: API609Test: API598Size: 2''-72 ... metalPacking: graphite We are a professional exporter in valve and related products with a long history,our company is ... Our products mainly include butterly valves,gate valves,check valves,globe valves and other special valves,we make these ... to ISO,DIN,USA,BS,JIS,GB standrads,and customers requirements are available also. Thank you for ...