Sectors: chemicals, oil pipelines, water treatment, gas, marine hardware, engineering and other models: Q41F- (16-25) P, C day / month / quarter to the number of delivery: 100/2000/3000 cargo Packing: Box Product Features: Benefits GB flange ball full bore easily leak, small size, easy installation, price / wholesale price: 50 yuan / only wide flange ball is a sphere with a circular passage for opening and closing parts, ball With stem rotation to achieve open and close the valve action. Valve opening and closing parts is a hole in the sphere of rotation around the vertical axis of the channel in order to achieve the purpose of opening and closing of the channel. Mainly used for pipes and cut off or connected media devices, can also be used for fluid regulation and control, valve fluid resistance is small, simple structure, small size, light weight, compact, reliable, easy operation and maintenance, does not cause the valve sealing surface erosion a wide range of applications.