Various diameters of brass balls are widely applies in the sprayer ,the carburetor ,the valve and so on. The copper ball:H62Diameter:1.0-40mm,Grade100-1000.Chemcal composition (%):CuPbZnFePSoBi61.70.08allowance0.150.010.0050.002Also in other material such as 59-1, red copper...Special material and nonstandard orders customized are available.