Tianjin Ruijie uamea paipa Co., Ltd. tuuina atu 2,500 tone o le tele-diameter ssaw sipi uamea paipa i Saina Railway Group Limited i 2018, lea sa faaaogaina e pei o auala auala paipa faaputuga uamea. O le lautele o paipa uamea o le 529-1660mm.
Tianjin Ruijie uamea paipa Co., Ltd. tuuina atu 2,500 tone o le tele-diameter ssaw sipi uamea paipa i Saina Railway Group Limited i 2018, lea sa faaaogaina e pei o auala auala paipa faaputuga uamea. O le lautele o paipa uamea o le 529-1660mm.
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