Ceramic Balls, Ceramic Bearings, Thin Section Bearings manufacturer / supplier in China, offering Solid Copper Ball 1-20mm for Precision Bearing for Conductive Welding of Solid Brass Ball, Copper Ball Solid Ball 0.6mm 0.8mm 1mm Pure Brass Copper Bead Precision Steel Ball, Brass Ball 2.381mm 2.5mm 3mm 4mm 5mm 6mm H62 Copper Ball and Copper Bead and so on.