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中国港口代码
Codes of China ports
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条码检测仪
Bar Code Verifiers
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海上交通事故统计信息分类与代码 气象海况
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机械制造工艺方法分类与代码 装配与包装
Classification and codes for machine manufacturing process and method Assembly and packaging
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机械制造工艺方法分类与代码 覆盖层
Classification and codes for machine manufacturing process and method Coating layer
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机械制造工艺方法分类与代码 热处理
Classification and codes for machine manufacturing process and method Heat treatment
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