ERW Steel Tube Pipe 1. Type welded 2. Material Q195, Q235, Q235B, SS400, SPHC 3. Standard GBT13793-2008, GBT6728-2002, JIS G63466-1988 4. Application building materials, automotive application, industrial application, sport equipment, furniture, etc. 5. Specification Size Square: 20mm*20mm-100mm*100mm Rectang more...
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