... (3) Certificate:ISO9001:2008 hot forged alloy and carbon round steel bar 5CrMnMo Zhangjiagang Yongsheng Casting Co.,Ltd is a ... producing forging, carbon steels, alloy steels, tool steels, forged round bars, square bars.Wehave integrated with smelting,forging,machining andheat ... ISO9001:2008Output: more than 6000MT/ monthEquipments: 5000 tons hydraulic press, 800 tons quick forging machine, ESR furnace.