PROFESSIonAL Yung Tai steel ball established in 1985 for the production technical items, aimed at " High quality & Low price" The company kept introducting lastest technologies and requirements to its customes. Steel ballsStainless steel ballsChrome steel ballsCarbon steel ballsStelli tes steel ballsGrade rangs: 50-2000Size rangs: 1. 5mm-25mm