白刚玉粉体常用型号: | W标:W63, W50, W40, W28, W20, W14, W10, W7, W5, W3.5, W2.5, W1.5, W1, W0.5 FEPA标: F230, F240, F280, F320, F360, F400, F500,F600, F800, F1000, F1200, F1500 JIS标:JIS240, 280, 320, 360, 400, 500, 600, 700, 800, 1000, 1200, 1500, 2000, 2500, 3000, 4000, 5000, 6000, 8000, 10000# |