ningbo balls 1.Custom size,In general,3-10mm 2.Multi coating can be choose 3.Reasonable price 4.Wide range grades ningbo ballsDescriptionsize3mm~10mm. GradeN35-N45,etc.ColorGold, Silver, Black, Nickel,Red,Blue,White,etc.CoatingSilver,Gold,Ni,Cu,NiCuNi,Zn,etc.PackingOPP bag, Round steel box, Rectangle steel box ningbo balls