China Black Steel Square Tube Manufacturers,Suppliers

Standard BS1387,ASTM A53,ASTM A500,ASTM A513M-06B,GB/T6728-2017.Quality Inspection.Packaging Container Loading.Product Feature Advantage.Analysis of appearance quality and advantages of black steel square tubeGB/T 6728-2002,PDF in English ,page1.Some results are removed in response to a notice of local law requirement.For more information,please see here.12345Next

Square Rectangular Pipes / Tubes The factory has more than ten years of professional production experience .Now we have cold rolled seamless steel pipe 12 production lines and hot rolled seamless steel pipe 1 production line,one more hot rolled seamless steel pipe production line is under construction.Square Steel Pipe Products for Sale Sell Metal and

Product Details Product Name Square Steel Pipe Standard DIN EN10210,EN10219,GB/T3094-2000,ASTM A500,JIS G 3466,GB/T6728-2002 Square Tube Dimension 20mm*20mm-1000