Ball Blanks for Making Hollow Valve Balls without Tube Welded inside

For all valve balls, especially hollow valve balls without tube welded inside, the most important points of the valve balls are thickness of wall, the roundness and the surface finish. But if ball blanks are not good, the finished valve balls will not be good also! We are able to manufacture valve ball blanks to be sure that your final finished valve balls will be with extremely high roundness and high surface finish tolerances.