hellonged expansion joint
... 压力平衡式膨胀节pressure balanced expansion 带铰链膨胀节hellonged expansion joint 轴向位移型膨胀节axial movement type expansion joint ...
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... 纵贯式隔阂阀 straight ay diaphragm valve 带搭钮膨胀节 hellonged expansion joint 迅速接头 quick coupling ...
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hellonged expansion joint
hellong伸缩缝
以上为机器翻译结果，长、整句建议使用 人工翻译 。