document.writeln('

                                    

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                直通 BPU 8

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T正型三通BPB8-03

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BPC螺纹直通 12-04

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BPC螺纹直通 10-04

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                           直通变径 

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                 Y型三通 BPY Φ8

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螺纹直通    BPC12-03

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                                塑钢

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                               直通B

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');