surface treatment: mirror polished material:AISI 304 diameter: 5-20mm thickness: 0.5-1.5mm SS hollow ball:Diameter: 3.8-50mmthickness: 0.35-2.5mmmaterial: stainless steel 304,316surface handling: radial polishingspec: diameter is 33.7, 40, 42.4, 48.3, 50, 60, 70, 80, 100, 120mmconnection: weldingtechnics: castingpackage: polybag+small box+outer carton or as customer's requirementdelivery detail: ...