Dn80 Sch 80

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橡胶软接头dn80的等效应力值相差较大 - 知乎

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DN 80 / 88,9 mm / 3" - PN 40 - 1.4571 - Vorschw...

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铭固 合金钢制三通 DN80/DN80/DN25 接管Φ89×8/Φ89×...

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DN 80, PN 10 counter flange kit | Wilo

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DN80热镀锌钢管技术指标 友发镀锌管现货天津泰和天成

DN80/DN800 Pipe coupling for PVC pipe, View DN8...

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DN 80 / 88,9 mm / 3" - PN 40 - 1.4571 - loser F...

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DN 80 in der Entwässerungstechnik - SBZ

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DN 80 / 88,9 mm / 3" - PN 40 - P245GH / C22.8 –...

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DIN 基準規模

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