... components A)High chromium steel ball C 1.8-3.3, Si 0.3-1.2, Mn 1.5-2.0, Cr 10-16 ... 0.1MaxB)Medium chromium steel ball C 2.0-3.3, Si 0.3-1.2, Mn 1.5-2.0, Cr 4 ... .1MaxC)Low chromium steel ball C 2.2-3.5, Si 0.3-1.0, Mn 0.5-1.5 Cr 0.8 ... MOQ5 TonSPayment terms 1)100% T/T in advance 2)30%T/T in advance +70% irrevocable L/C at sightDeliveryusually 20 ...