GRISH360目金刚石研磨砂纸45微米粒度磨料超硬材料研磨抛光 ¥15.00 GRISH400目研磨砂纸40um金刚石颗粒磨料PET薄膜基材 ¥15.00 GRISH30微米D系列金刚石研磨抛光砂纸磨削力强磨削速率高 ¥15.00 GRISH1000目D系列金刚石研磨砂纸16微米磨料均匀分布PET薄膜基材 ¥15.00 GRISH15微米金刚石磨料研磨纸金属陶瓷硬质材料磨削砂纸 ¥15.00 GRISH五金磨具金刚石2000目研磨砂纸9微米磨料水油研磨介质均可 ¥15.00