An gudanar da taron fitar da bututun ƙarfe na shekarar 2021 a birnin Tianjin a ranar 16 ga watan Yuli, wanda reshen bututun ƙarfe na China (CSPA) ya dauki nauyinsa, kuma Tianjin Youfa Steel Pipe Group ta dauki nauyinsa.
Bayan ganawa, wakilan taron karawa juna sani na fitar da bututun ƙarfe na 2021 sun ziyarci ƙungiyar Tianjin Youfa Steel Pipe Group a ranar 17 ga Yuli
Lokacin Saƙo: Yuli-17-2021