Q & A details -硬质合金(钨钢)研磨时产生的粉末对人有什么危害?
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硬质合金(钨钢)研磨时产生的粉末对人有什么危害?

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硬质合金(钨钢)研磨时产生的粉末对人有什么危害?

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  • 0861788249

    0861788249 2017-01-05 10:52:52

    长时间大大量吸入容易尘肺

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