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据悉挪威希内斯（Kirkenes）境内之西特维莱冶铁矿山（Sydvarange’sironoremine）一台规格为φ6．5×9.65m世界上最大的球磨机，采用聚甲基丙稀酸为主要原料制成的筒体材板取代原钢质材板。这种新型材质的材板自1992年开始研制成型、安装投产、调试检测至1994年7月花费近两年时
It is reported that Norway’s Kirkenes in the territory of the West Tewei Lai iron mine (Sydvarange’sironoremine) a specification of φ6.5 × 9.65m the world’s largest ball mill, the use of polymethyl methacrylate as the main raw material Into the cylinder plate to replace the original steel sheet metal. This new material board has been developed since 1992, put into production, commissioning and testing to July 1994 spent nearly two years