... Turned 2) Normalized/Q+T/Annealed 3)Certificate:ISO9001:2008 alloy forged steel bar 42CrMo/4140 Zhangjiagang Yongsheng Casting Co.,Ltd ... exporter in China which specializes in producing forging, carbon steels, alloy steels, tool steels, forged round bars, square bars.Wehave integrated ... -91 CLASS 3 or SEP 1921 C/C ,D/d.4.Manufacture:EAF+LF+VD(Annealed,normalized,Quenched+Tempered,peeled,rough ...