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Terms for subject Oil / petroleum containing 刚砂 | all forms | in specified order only
ChineseEnglish
刚玉砂emery sand
刚砂carborundum grit
刚砂powder emery
刚砂磨光机emery buff
刚砂emery dust
刚砂carborundum powder
刚砂carborundum grinding wheel