Tianjin Ruijie Steel Pipe Co., Ltd. togi 2,500 tons o pipe aofi maumau lalolagi i le China Railway Group Limited ona leva i 2018, ona faiaoga ai e tali atu i mea faiaoga faleaoao. O le matagofie o na pipe maumau laua o 529-1660mm.
Feiloa'iTianjin Ruijie Steel Pipe Co., Ltd. togi 2,500 tons o pipe aofi maumau lalolagi i le China Railway Group Limited ona leva i 2018, ona faiaoga ai e tali atu i mea faiaoga faleaoao. O le matagofie o na pipe maumau laua o 529-1660mm.