荥阳金渤磨料有限公司，为郑州地区白刚玉生产骨干企业。
白刚玉是以优质氧化铝粉为原料，在2050摄氏度高温下熔炼而成，它具有纯度高、自锐性好、磨削时发热量小、耐酸碱、高温稳定性好、气孔率低等特点。
电熔白刚玉是生产中高档不定型和定型耐火材料的主要原料，常用于钢包浇注料、铁沟料、耐火喷补料等不定i型耐火制品；在定性耐火材料中，它主要用在刚玉砖、刚玉莫来石质匣钵、精炼用刚玉多孔塞砖、整体喷枪、炼钢连铸三大件、超高温工业窖炉内衬等刚玉制品。它又是磨料磨具行业的优质原料，主要用在砂轮磨具、抛光研磨行业，在军工、造船、玻璃、航天、航空、光学仪器、核能等行业有广泛地用途。
白刚玉技术参数：
| Function | Model Number |
| | Al2O3 | SiO2 | Na2O | Fe2O3 |
Grind and sandblast | #10-#80 | 99.55min | 0.04max | 0.22max | 0.04max |
| #90-#180 | 99.54min | 0.04max | 0.25max | 0.04max |
| #220-#240 | 99.53min | 0.04max | 0.25max | 0.04max |
Polishing | F320 | 99.50min | 0.06max | 0.26max | 0.05max |
| F400 | 99.35min | 0.10max | 0.26max | 0.05max |
| F500 | 99.29min | 0.12max | 0.29max | 0.05max |
| F600 | 99.27min | 0.14max | 0.30max | 0.06max |
| F800 | 99.25min | 0.14max | 0.30max | 0.06max |
| F1000 | 99.20min | 0.15max | 0.32max | 0.07max |
| F1200 | 99.00min | 0.15max | 0.32max | 0.08max |
Refractory material | 0-1,1-3,3-5, 5-8mm | 99.60min | 0.04max | 0.20max | 0.04max |
| 180,200,240, 280,320F | 99.00min | 0.05max | 0.30max | 0.04max |
