Steel Ball With Holes
Steel ball with holes is stamped press two steel hemispheres first. then punching the hole on the hemisphere by stamping hole mould.the standard mould: ∅19mm,∅25mm,∅32mm,∅38mm, ∅50mm, etc. at the meantime.
if the required hole is not our standard mould size, we drill or laser cutting hole referring your required size.
after finishing holes, welding together two hemisphere. finally mirror polishing.