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1. GB-20CrMo. DIN-25CrMo4. JISG-SCM420. ISO--18CrMo4.
2. Hot rolled round steel bar3. Dia 18-360mm
4. Good Quality, can be after the Q/T heat-treatment
5. Can be ensured with Ultra-sonic defeat detector,
25CrMo4/20CrMo4/SCM 420 Round steel bar