混流式水輪機(jī)焊接轉(zhuǎn)輪上冠 Crown for francis turbine welded runner | 混流式水輪機(jī)焊接轉(zhuǎn)輪的上冠部分 |
混流式水輪機(jī)焊接轉(zhuǎn)輪下環(huán) Band for francis turbine welded runner | 混流式水輪機(jī)焊接轉(zhuǎn)輪的下環(huán)部分 |
鑄件 Castings | 通過鑄造工藝制造的金屬零件 |
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