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abrasive powder or grain，on a base of materials other than woven textile fabric，paper or paperboard，whether or not cut to shape，sewn or otherwise made up
經(jīng)濟管理

〔建〕天然或人造研磨料粉或粒,以除織物、紙或紙板外的材料為底板,不論是否剪裁成形、是否縫合或經(jīng)其他方式制作......（本文共 53 字） [閱讀本文] >>

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abrasive powder or grain，on a base of materials other than woven textile fabric，paper or paperboard，whether or not cut to shape，sewn or otherwise made up 經(jīng)濟管理

abrasive powder or grain，on a base of materials other than woven textile fabric，paper or paperboard，whether or not cut to shape，sewn or otherwise made up
經(jīng)濟管理