Tianjin Ruijie Karfe Bututu Co., Ltd. ya ba da tan 2,500 na manyan bututun ssaw mai karkatar da bututu zuwa China Railway Group Limited a cikin 2018, waɗanda aka yi amfani da su azaman manyan bututun ƙarfe na ƙarfe. A diamita na karfe bututu ne 529-1660mm.
Tianjin Ruijie Karfe Bututu Co., Ltd. ya ba da tan 2,500 na manyan bututun ssaw mai karkatar da bututu zuwa China Railway Group Limited a cikin 2018, waɗanda aka yi amfani da su azaman manyan bututun ƙarfe na ƙarfe. A diamita na karfe bututu ne 529-1660mm.
Haƙƙin mallaka © Tianjin Ruijie Steel Pipe Co., Ltd.
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