信工 ® XINGONG 碟型2号砂轮 硬度高、抗压强度高、耐磨性好 HIGH HARDNESS,HIGH COMPRESSIVE STRENGTH AND GOOD WEAR RESISTANCE DIAMOND PARALLEL GRINDING WHEEL 削磨率高 不易掉砂 应和浓度打结含剂分 性能优越 型供卫2规指503议5衫 :度和浓庭5菇含剂力 S>准润鲜d4 型状,视格125XX3204 队愁鲜比滋光形翻圈 75结合测 网格00X2DK53 硬料研磨 精细研磨经久耐用