https://www.ynjsw.com/file/upload/2011/65/6442-17684-58961.com/upload_files/other/8414_20120903170946_serqrsvfniu4rsu5mivfnivcmcvcncvfnyvbrsvbmsvfrivcqyu4ocvfosvbqiu5ocvfnsvbriu4nivfnsvcqsvbnivfocu4msu5qsvfncvcosu5osvfnyu4myvbrivfrivcqyu5q0heueulruylqkmlo

HDPE排水管（高密度聚乙烯＜HDP..

https://www.ynjsw.com/file/upload/2011/65/6442-17684-58962.jpg

HDPE双壁波纹管

https://www.ynjsw.com/file/upload/2011/65/6442-17684-58963.jpg

PE给水管

https://www.ynjsw.com/file/upload/2011/65/6442-17684-58964.com/upload_files/other/8414_20120903170945_ueulrtclodclodmlrtylqjalotqlrtclquulqtelruylqkmlodglrtclodclodmlrtylqjalotqlrtclotqlqtglrtglodelouelrtqlqjklotklrtclodmlquylruylqkmlounqrsvfrivcqyu5rsvfn

PE燃气管（燃气用聚乙烯＜PE＞..

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