Concrete pipe, Cement pipe. 混凝土管, 水泥管

Mohammed Abed/AFP/Getty
Palestinian factory workers rest inside concrete pipes as they wait for the start of a working day in Gaza City on Wednesday.
FT Photo Diary | A blog from the Financial Times  http://blogs.ft.com/photo-diary/

Children sitting inside cement water pipes play on the Marina beach in the southern Indian city of Chennai. (Babu/Reuters)
Pictures of the Week: 10.06 – 10.12 2013 | CLIK/HEAR | Multimedia, photography, video showcase of The Palm Beach Post  http://clikhear.palmbeachpost.com/2013/potw/pictures-of-the-week-10-06-10-12-2013/

Concrete - Wikipedia, the free encyclopedia  http://en.wikipedia.org/wiki/Concrete
混凝土 - 維基百科，自由的百科全書  http://zh.wikipedia.org/wiki/%E6%B7%B7%E5%87%9D%E5%9C%9F
concrete pipe_查查在线词典
混凝管, 水泥管
混凝土管
http://www.ichacha.net/concrete%20pipe.html
reinforced concrete pipe_爱词霸在线词典
钢筋水泥（电）杆，钢筋水泥管
http://www.iciba.com/reinforced+concrete+pipe

Cement - Wikipedia, the free encyclopedia  http://en.wikipedia.org/wiki/Cement
水泥 - 維基百科，自由的百科全書  http://zh.wikipedia.org/wiki/%E6%B0%B4%E6%B3%A5
【cement_pipes】_有道词典
cement pipe [建] 水泥管
http://dict.youdao.com/search?le=eng&q=cement%20pipes&keyfrom=dict.index

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