The copper chain balls are widely applies in the package tieline chains, jewelly, bracelet, necklaces, etc. The copper chain balls are widely applies in the package tieline chains, jewelly, bracelet, necklaces, etc.Diameter:1.0-40mm,Grade100-1000.Chemcal composition (%):CuPbZnFePSoBi61.70.08allowance0.150.010.0050.002 Nonstandard dimensions customized are acceptable.