... 非金属包复的 NM 手工具的非金属手柄 Handles not of metal 存放废纸的非金属容器 Nonmetallic containers for waste paper ...
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tool handles,not of metal
...的非金属容器 Nonmetallic containers for waste paper 手工具的非金属手柄 Handles not of metal ; tool handles,not of metal 非金属材料的电阻测试 Electric resistance of non-metallic materials ..
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non-metallic handles of hand tools
手工具的非金属手柄 non-metallic handles of hand tools
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