用两层棉布加上一层麻布车缝而成，同时具备切削及一定程度的抛光能力，主要用在预备抛光的金属制品上。
One Layer of bias sisal sewed with two layers of cotton cloth, provides it good cutting and polishing properties, mainly used for pre-polishing of metal ware.
用两层棉布加上一层麻布车缝而成，同时具备切削及一定程度的抛光能力，主要用在预备抛光的金属制品上。
One Layer of bias sisal sewed with two layers of cotton cloth, provides it good cutting and polishing properties, mainly used for pre-polishing of metal ware.
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