welded shell ring的意思|示意
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焊接壳环
welded shell ring的网络常见释义
焊接锅炉筒 ... welded shell course焊接锅炉筒 welded shell ring焊接锅炉筒 welded specimen焊接试样 ...
烧焊锅炉筒 ... welded shell course烧焊锅炉筒 welded shell ring烧焊锅炉筒 welded specimen烧焊试样 ...