主营产品：金刚砂,,棕刚玉,,黑刚玉,,白刚玉,,碳化硅,,抛光砂,,除锈砂,,铁砂,,玉米芯,,核桃壳,,石榴石,,石英砂,,卵石,,陶粒,,生产：金刚砂,经销：棕刚玉磨料、耐火材料、碳化硅、石榴..