| description | 河南三耐实业有限公司始建于1985年,由三门峡刚玉厂发展而来,是原国家冶金部投资的上海宝钢配套企业,是冶金部定点生产致密刚玉的专业企业。 |
| keywords |
致密刚玉|白刚玉|空心球|三门峡电熔刚玉|电熔刚玉|耐火材料 |
| introduction |
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| update time | 2026-04-11 04:44:22 |
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