ball bearing floating plate die csting
焊接铸造英语词汇第39页 ... 球状石墨铸铁spheruliticgraphitecastiron 球承式模板ballbearingfloatingplate，diecsting 球化处理spheroidizing ...
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ball bearing floating plate
... thrust bearing end plate 推力轴承端板 ball bearing floating plate 球承式模板 bearing plate 支承垫板 ...
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