round steel bars, tool steel, D2/D3, H11/H13, dia. 80-400mm. EAF+LF+VD+UT+Heat Treatment round steel bar.We,Qilu Special Steel, professional manufacturer of Forged Steel Round Bars and square bars- diameter 80mm-400mm.Standard : ASTM, DIN, JIS, BSFabrication Process: EAF+LF+VD+U.T. ( necessary) Peeling +Rough Turning + Heat Treatment (optional)ISO9001:2000 Certification round steel bar(D2/D3)