https://www.ynjsw.com/file/upload/2011/65/6442-17686-58979.com/upload_files/other/8414_20120903170936_ufatuivfnsu4nivcnyvfnyu4myvbrcvfnivcmcvcncvfnyvbrsvbmsvfrivcqyu4ocvfnsu4nivcnyvfnyu4myvbrcvfnivcmcvcncvfnyu5ncvbocvfrivcqyu5q1bquivfrivcqyu5rsvfocu4msu5q

PP-R冷热水管（冷热水用＜PPR＞..

https://www.ynjsw.com/file/upload/2011/65/6442-17686-58980.jpg

PP-R塑铝稳态复合管

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