黑刚玉硬度高、韧性大，刚柔相济，耐磨耐用；其粘结性和亲水性好，便于上磨盘；磨削时堵塞少，发热少，工件不会烧伤；自锐性强，工效高，且加工面无划痕，抛光洁度高；比棕刚玉抛光能力提高一倍以上，抛光洁度提高二级以上。黑刚玉以其独特的性能，磨削抛光效果之佳，越来越受广大有识之士的瞩目和青睐。
黑刚玉磨料，适用于不锈钢，金属制品电镀前底面抛光和喷沙，它适用于玻璃、竹木、石材等制品的磨削和抛光，#vbcr
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