emeryn.金刚砂
emery countersink金刚砂埋头钻
Emery and impurity金刚砂及杂质
emery wheel dresser砂轮整形器
emery-coated beam金刚砂卷布辊
emery wheel dressing[机] 修整, 砂轮
emery grinding wheel金刚砂砂轮
emery grinding stone金钢砂磨石
Emery-Dreifuss type埃[默里]-德[赖富恩]二氏慢性进行性伴有挛缩型
emery grinding grease金刚砂研磨膏