Msonkhano wa 2021 Steel Pipe Export Conference womwe unathandizidwa ndi Steel Pipe Branch of China Steel Structure Association (CSPA) ndipo unachitikira ku Tianjin Youfa Steel Pipe Group, unachitikira ku Tianjin pa 16 Julayi.
Pambuyo pa msonkhano, oimira msonkhano wotumiza mapaipi achitsulo wa 2021 apita ku Tianjin Youfa Steel Pipe Group pa 17 Julayi
Nthawi yotumizira: Julayi-17-2021