Kākoʻo ʻia e ka lālā Steel Pipe Branch o Kina Steel Structure Association（CSPA） a mālama ʻia e Tianjin Youfa Steel Pipe Group, 2021 Steel Pipe Export Symposium i mālama maikaʻi ʻia ma Tianjin i ka lā 16 Iulai.
Ma hope o ka hālāwai, kipa nā ʻelele o ka 2021 steel pipe export symposium iā Tianjin Youfa Steel Pipe Group ma 17 Iulai
Ka manawa hoʻouna: Iulai-17-2021