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硅酸鈣鋼套鋼保溫管

硅酸鈣鋼套鋼保溫管

集中供暖用聚氨酯直埋保溫管設(shè)技術(shù)是一種防水、防漏、抗?jié)B、抗壓和全封閉的埋設(shè)新技術(shù)，是直埋敷設(shè)技術(shù)在地下水位較高地區(qū)使用的一次較大突破。它是由輸送介質(zhì)的鋼管、防腐外套鋼...

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