black iron hollow section square pipe tube made in china

Square & rectangular TubeBlack steel is the uncoated steel. When steel pipe is forged, a black oxide scale forms on its surface to give it the finish which is seen on this type of pipe. Because black steel is subject to rust and corrosion, the factory also coats it with protective oil.

China SQUARE HOLLOW SECTION PIPE catalog of 50*50mm Rectangular Steel Hollow Section Pipe, Ms Black Welded Rectangular Square Steel Pipe Tube provided by China manufacturer Tianjin Boer King Steel Import and Export Co., Ltd., page1.

black mild steel square tube hollow section Tianjin tianyingtai Steel Pipe Co., Ltd. was established in 2001 January, the company is located in China's steel production base, Jinghai County Economic Development Zone Tianjin city.

Pipe, Tube, Hollow Section manufacturer / supplier in China, offering Direct Factory Supply Black Steel Square Rectangular Tube and Seamless Tube, Welded Steel Pipes Seamless Steel Tubes for Mechanical Manufacturing, Ms10210 En10210 S355joh Shs/Rhs Welded Square Hollow Section Rectangular Hollow Section and so on.

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Steel Coil/Sheet manufacturer / supplier in China, offering Top Selling Black Carbon Steel Pipe for Steel Pipeline, ERW Carbon Steel Pipe with End Plastic Coated Black Pianted, Q195/Q235/Q345 ASTM Welded High Frequency ERW Steel Pipe Factory and so on.

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Steel Coil/Sheet manufacturer / supplier in China, offering Top Selling Black Carbon Steel Pipe for Steel Pipeline, ERW Carbon Steel Pipe with End Plastic Coated Black Pianted, Q195/Q235/Q345 ASTM Welded High Frequency ERW Steel Pipe Factory and so on.

China Square Steel Tube catalog of Steel Rectangular/Square Tube of 250*250mm, Black Steel Square Pipe Exporter and Manufacturer provided by China manufacturer Jinan

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steel profile ms square tube galvanized square steel pipe gi pipe price 1.Weight per meter=[(length+width)*2/3.14 wall thickness ]*wall thickness*0.02466 1) Size rectangular O. D 20x30 mm 400x600 mm , square O. Mechanical part, furniture making 7) Packagein bundle covered by plastic bags with two strap in the end or as your request 8) Certificate SGS inspection,ISO9001:2008

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Tangshan Lianchuang Steel Making Science & Technology Co., Ltd. is a comprehensive company, which focus on welded steel pipes and other steel products. Established in 2008, based in Tangshan city, the industrial center of northern China, which is about 150 kilometers distance to Beijing and100 kilometers to Tianjin Port.

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High Quality A500 Steel Structural Square Tube picture from Jinan Xin Jiyuan Special Section Tube Co., Ltd. view photo of Shs, Hollow Section, Steel Tube.Contact China Suppliers for