https://www.ynjsw.com/file/upload/2011/65/6442-17683-58957.jpg

PE-RT地暖管

https://www.ynjsw.com/file/upload/2011/65/6442-17683-58958.jpg

PE-RT冷热水管

https://www.ynjsw.com/file/upload/2011/65/6442-17683-58959.jpg

PE-RT塑铝稳态管

https://www.ynjsw.com/file/upload/2011/65/6442-17683-58960.jpg

PE-RT阻氧管

1

4