“研磨者”的英语？

螺旋状的星云是研磨者所留下的痕迹.The spiral nebulae were scratches left by the grinder.采购产品铅笔, 研磨者, 钥匙链, 烛台, 钉子刷子, 计算机,配件文具.Pencil, Sharpener, Keychains, Bath Buddies , Toothbursh Holder, Nail Brush, Computer Accessories Stationery....