-Vim li cas tuaj xyuas YUANTAI DERUN- Tianjin Yuantai Derun Pipe Manufacturing Group Co., Ltd., tsim nyob rau hauv lub Peb Hlis 2002, * Cov chaw tsim khoom loj tshaj plaws tshwj xeeb hauv ERW square & square raj / yeeb nkab, hollow seem qauv yeeb nkab, galvanized yeeb nkab thiab kauv vuam yeeb nkab hauv Suav teb. .
Nyeem ntxiv