document.writeln('

                                    

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               BX高强度风管     Φ6.

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           BX高强度风管   Φ6.5×10

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    内螺纹直通 BPCF 6-04

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Y型三通   BPX 10-01

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TPU 防冻管            Φ 6.5 x 10

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防冻   夹纱管                  8x12

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内螺纹直通 BPCF 10-03

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直通变径 6-8

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');