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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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熱浸塑鋼管生產企業

電力工程用穿線涂塑鋼管采用涂裝而塑塑參照GB/T136(給水襯塑復合鋼管)。鋼塑之間的結合力不同，涂塑鋼管的涂塑層牢牢結合在鋼管表面，不會輕易脫落，而襯塑鋼管使用時間長了塑料...

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