考古专业的学生们正在检查克巴特·恩-纳哈斯遗址，这里是位于死海以南的一处古老铜冶炼中心。
Archaeology students examine Khirbat en Nahas, an ancient copper-smelting center south of the Dead Sea.
是生产和销售硅铁、电石矿热炉的液压系统和焦化冶炼系统的专业厂家。
Is the production and sale of ferrosilicon, calcium carbide hydraulic system and the submerged arc furnace smelting coking system of professional manufacturers.
根据冶金过程热力学原理，应用烧结、冶炼、提钒三个专业领域的新技术，提出了废渣综合利用工艺流程。
Based on the metallurgical thermodynamics and new techniques in the field of sintering, smelting and vanadium extraction, a process for the comprehensive utilization of the tailings was developed.
钢结构工程、起重设备安装、冶炼机电设备安装工程专业承包一级资质；
Class I Speciality Contractor for steel structure project, heavy machinery installation, mechanism and electrical equipment of smelting industrial installation;
钢结构工程、起重设备安装、冶炼机电设备安装工程专业承包一级资质；
Class I Speciality Contractor for steel structure project, heavy machinery installation, mechanism and electrical equipment of smelting industrial installation;
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