Steel Grade: tool steel Standard: AISI, ASTM, BS, DIN, GB, JIS Dimensions: Dia45---500mm Place of Origin: Hubei, China (Mainland) Brand Name: SanZhao Model Number: 1.3343 Technique: Forged, forged or hot rolled Application: Tool Steel Bar Alloy Or Not: Is Alloy Special Use: Mold Steel Type: Alloy Steel Bar condition of surface: black,rough machined(peeled),turned Inspecting: Ultrasonic test, according to SEP1921 D/d or as your requirements Quality Control: supuly M.T.C or third party inspection institution