Specifications: 0.794(mm)-4.0(mm)and others are available at orders. Tpye: Stainless ball, chrome steel ball, broze ball
Technical Date: (1)steel ball shape and surface roughness confirm to GB308; G10 (2)Maximum steel ball sphere diameter variation VDWS G10; 0.25um (3)Maximum steel ball lot diameter variation VDWL G10; 0.5um (4) Steel ball gauge, subgauge and other data confirm to the requirements stipulated in GB308