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焊接(jie)井采用(yong)HDPE中(zhong)空(kong)壁纏繞管(guan)成(cheng)品二次加工(gong)而成(cheng)，適合大(da)口(kou)徑檢(jian)查井需(xu)求，井徑可達DN800-3000mm。具有施工(gong)便捷(jie)、排水效率高、沉降均勻(yun)、工(gong)程造價低等優勢，是現代市政工(gong)程的好選擇。
![[name]](uploadfile/20220111/2022018675.png)
![[name]](uploadfile/20220111/2022086747.png)
