... :50-330mm 4)Ground or unground finished Steel round bars,alloy steel bars,bright bars1)Our factory can supply different materials of ... steel bars,such as tungsten carbide,hss,hss-co (M42,M35,M2)... ... , aluminum, iron steel,brass, ect8)long use life, wear resistance, re-impactPlease feel free to contact us. Any questions are highly ...