Carbon Steel Ball 1.Material: AISI1010-1085 2. ... :G10 to G1000 4.Hardness:HRC58-62 Carbon Steel BallSpeicification of our carbon steel ball1. Material: AISI1010,AISI1015,AISI1045,AISI10852 ... box Outer packing: export carton or bags 6. Application: bicycle, bearings, pulleys, rails, crafts, shelves, universal ball, bags ,small ... to contact me directly.Helen,Zhang 0086-15854189625 Carbon Steel Ball