ADDRESS:Red fruit in Huinong District, Shizuishan City (in the courtyard of Ningxia Shenyin Special Steel Co., Ltd.) | BUSINESS SCOPE: | Preparation of oxygen and nitrogen production projects*** (Projects that must be approved in accordance with the law can only be carried out after approval by relevant departments) | E-MAIL: | zhangdong@nxsytg.cn;2533136781@qq.com;2533136781@qq.cim;850087194@QQ.com
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