1.soft sealed butterfly valve with handwheel 2.EPDM coated,excellent anti-corrosion 3.ductile cast iron GGG50 body and disc.. Soft sealed butterfly valve with handwheel . Soft sealed butterfly valve with handwheel,EPDM coated,excellent anti-corrosion,double eccentric structure. . Our company(soochow yueda valve co., ltd) specializes in gate valves, butterfly valves and check valves.. The quality ...