Kev txhawb nqa los ntawm Steel Pipe ceg ntawm Tuam Tshoj Steel Structure Association (CSPA) thiab tuav los ntawm Tianjin Youfa Steel Pipe Group, 2021 Steel Pipe Export Symposium tau ua tiav hauv Tianjin thaum Lub Xya Hli 16.
Tom qab lub rooj sib tham, cov neeg sawv cev ntawm 2021 steel yeeb nkab export symposium tuaj xyuas Tianjin Youfa Steel Pipe Group thaum Lub Xya Hli 17th
Post lub sij hawm: Lub Xya hli ntuj-17-2021