2)1.6587, 18CrNiMo7-6, 4130,4140,4317,4142,4340,UNS440,25Cr2Ni4MoV 3)Max weight: 60T 4)FOB Shanghai, FOB Tianjin forging rings for winder power, bearing, forged rings, gear rings Detailed Description: 1) Product Name: Forged rings, ring rolling, Forging ring 2) Material: ...