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專業生產銷售大口徑厚壁國標螺旋鋼管，廠內加工防腐/保溫/涂塑

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排水用涂塑復合鋼管價格

排水用涂塑復合鋼管價格

排水用涂塑復合管是采用的改性重防腐環氧樹脂粉末，具有優良的耐化學腐蝕性能，涂塑防腐鋼管質量，從根本上解決了同類產品在長期使用后出現表面生銹腐蝕、內壁結垢等諸多問題，避...

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