N/a manufacturer / supplier in China, offering Factory Direct Square Pipe/Square Pipe /Q235 Cold Rolled Black Annealed Steel Pipe Hollow Steel Section Square Pipe, Hot DIP Galvanized Steel Pipe Green House Structure 20 - 914mm Hot-Dipped Galvanized Corrugated Square Tubing, Manufacture Building Material A36 Ss400 Roof Sheet Zin Galvanized Corrugated Plateroofing Sheets and so on.
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