Fine sand cloth or emery cloth may also be used with the same precautions.
细砂布或金刚砂布也可以使用，但同样要小心。
Use sand cloth or steel wire brush to clean both tube and cup to a bright metal. Steel wool is not recommended.
采用砂布或钢丝刷清除管道和端口，使其显露出光洁的金属色。不建议采用钢丝棉。
This kind of soft sand cloth isstiff, and it can be made into sand belts. it is mainly used for polishing colour metals, furniture and things used in kitchen.
柔软布基砂带，具有较高的强度，适合做成砂带。主要用于：有色金属、水暖器材、卫生洁具、厨房用品等的磨削和抛光。
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