Ua mālama pono ʻia ka 2021 Steel Pipe Export Symposium ma Tianjin ma ka lā 16 o Iulai, i kākoʻo ʻia e ka Steel Pipe Branch o China Steel Structure Association（CSPA） a mālama ʻia e Tianjin Youfa Steel Pipe Group.
Ma hope o ka hālāwai ʻana, ua kipa aku nā ʻelele o ka hui hoʻokuʻu aku paipu kila 2021 i ka Tianjin Youfa Steel Pipe Group ma ka lā 17 o Iulai
Ka manawa hoʻouna: Iulai-17-2021