Are there many metal factories in Henan?

There are many metal factories in Henan. There are many lead and zinc smelters in Henan province, and the recommended ranking is as follows: Henan Yuguang Gold and Lead Group Co., Ltd. (electrolytic lead), Henan Yuguang Gold and Lead Co., Ltd. (electrolytic lead), Henan Yuguang Zinc Industry Co., Ltd., Jiyuan Jinli Smelting Co., Ltd. (electrolytic lead), Jiyuan Wanyang Smelting (Group) Co., Ltd. (electrolytic lead), Anyang Yubei Gold and Lead Co., Ltd. Jiaozuo Oriental Gold and Lead Co., Ltd.