Sponsored by the Steel Pipe Branch of China Steel Structure Association（CSPA） ma talimalo e Tianjin Youfa Steel Pipe Group, 2021 Steel Pipe Export Symposium sa fa'amanuiaina i Tianjin i le aso 16 Iulai.
Ina ua uma le fonotaga, sui o le 2021 uamea paipa auina atu i fafo symposium asiasi Tianjin Youfa Uamea Paipa Vaega i le 17th Iulai
Taimi meli: Iul-17-2021