welding frame
... welding frame: 焊接机座 non-welding frame: 车架整体式无焊接 Frame welding: 架子焊接 ...
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其结构特点是：机座采用钢板压形焊接机座，滚动抱轴承结构；
Frame is a press-formed welded fabrication and hugging bearing structure;
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