... FAX:0086-10-51259577Application Nantong China-Mining SLVds -0.1 manual single, double flat gate valves are widely used in ... to control dust ideal equipments. Second, characteristics SLVds -0.1 manual single, double flat gate simple structure, light weight, flexible ... dust influence.Three, working principle Nantong middlings SLVds -0.1 manual single, double flat gate mainly by the framework, screw ...