1.D80~D900mm 2.H13,4130,4140,4150,4340,1035,1045,EN9,EN19,EN24,EN31,51200,SUJ2,100Cr6,K310,34CrNiMo6,36CrNiMo4,42CrMo4,etc. Henan Zhongyuan Roller Shaft Co., Ltd. is a professional manufacturer which mainly produces forged rolls and forged shafts fully in accordance with customers’ requirement in zhongyuan area in China. Annual intergration producing capacity is: 10000 tons of forged cold rolls, ...