Ụlọ ọrụ Steel Pipe nke China Steel Structure Association (CSPA) na-akwado ma bụrụkwa nke Tianjin Youfa Steel Pipe Group, 2021 Steel Pipe Export Symposium mere nke ọma na Tianjin na 16th Julaị.
Mgbe nzukọ gasịrị, ndị nnọchi anya nnọkọ mbupụ ọkpọkọ nchara 2021 gara Tianjin Youfa Steel Pipe Group na 17th Julaị.
Oge nzipu: Jul-17-2021