3M 7440土黃色尼龍擦片 切削/拋光 A MED 粒度:150#,礦砂:氧化鋁 金剛砂含量高,能快速移除氧化層,擅長用于不銹鋼清潔和除銹。 尺寸:6IN*9IN 包裝:10片/盒,4盒/件 Scotch-Brite? Hey Duty Hand Pad 7440, 6 in x 9 in Tight and dense, this pad is the most aggressive and durable web. Excellent for hey cleaning, deburring, and finishing. May be used by hand, with a hand pad block or on an in-line sander. Abrasive mineral: Medium grade aluminum oxide. Color: Tan