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。

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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。

youdao