Properties 旵onstruction---- ZrO2,Al2O3,Si3N4 旽igh toughness, strength and hardness 旻ine surface finish (Ra of 0.01um) and auto-lubrication 昄ow thermal conductivity, anti-acid and anti-alkaline Applications 旳pplicable to chemically demanding, vacuum, non-magnetic, non-static, non-radiation and insulated circumstances 旳lso vastly used in ceramic bearings, gauge pumps, oil pumps, ball-point pens, precision gauge balls and the other meters Specifications Ranging from 1/16?1.588mm) to 2?50.80mm) or per order