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Q235 B Black Square Steel Pipe

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ASTM API 5L Q195 Q235 Q355 Stainless/Black/Round/Square/Culvert Rectangular Metal Steel Pipe

ASTM API 5L Q195 Q235 Q355 Stainless/Black/Round/Square/Culvert Rectangular Metal Steel Pipe

US $ 1,600-3,000 / Ton FOB
1 Ton (MOQ)
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Liaocheng Xinruyi Trading Co., LTD.

Shandong, China Since 2021
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Best Weld Q195/Q235/Q345/Pre-Galvanized Steel/Hot DIP Galvanized/Black Mild/ERW/Rectangular Pipe/Gi 100X100X5 Square Tube

Best Weld Q195/Q235/Q345/Pre-Galvanized Steel/Hot DIP Galvanized/Black Mild/ERW/Rectangular Pipe/Gi 100X100X5 Square Tube

US $ 330-450 / Ton FOB
25 Tons (MOQ)
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Chief Steel (Shanghai) Trading Co., Ltd.

Shanghai, China Since 2019
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China Q235 ERW Welded Hot Rolled Black Carbon Square Rectangular Hollow Section Steel Pipe Tube

China Q235 ERW Welded Hot Rolled Black Carbon Square Rectangular Hollow Section Steel Pipe Tube

US $ 558-760 / Ton FOB
1 Ton (MOQ)
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Wuxi Jinsuyuan Metal Products Co., Ltd.

Trading Company

Jiangsu, China Since 2024
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Wuxi Factory Ss Mild Welded Seamless Pipe 201 304 316 Q235 904L A106 Uns S32750 C276 Carbon Nickel Stainless Steel Pipe Black Galvanized Square Steel Pipe

Wuxi Factory Ss Mild Welded Seamless Pipe 201 304 316 Q235 904L A106 Uns S32750 C276 Carbon Nickel Stainless Steel Pipe Black Galvanized Square Steel Pipe

US $ 1,200-2,000 / Ton FOB
1 Ton (MOQ)
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Galaxy Metal Product (Wuxi) Co., Ltd

Jiangsu, China Since 2025
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New Selling Hot Rolled Black Steel Square Tube Q195 Q235 10*10 to 100*100 Aluminum Rectangular Hollow Tubular Steel Pipe

New Selling Hot Rolled Black Steel Square Tube Q195 Q235 10*10 to 100*100 Aluminum Rectangular Hollow Tubular Steel Pipe

US $ 3,800-4,200 / Ton FOB
5 Tons (MOQ)
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Shandong Huazhu Metal Manufacture Co., Ltd.

Trading Company

Shandong, China Since 2022
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Carbon Steel DN40 Black Hollow Section Q235 Square Metal Tube Carbon Steel Pipe

Carbon Steel DN40 Black Hollow Section Q235 Square Metal Tube Carbon Steel Pipe

US $ 500-700 / Ton FOB
10 Tons (MOQ)
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Tangshan Zuoqiu Steel Trade Co., Ltd

Trading Company

Hebei, China Since 2025
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Carbon Steel Sch 40 Black Hollow Section Q235 Square Metal Tube Carbon Steel Pipe

Carbon Steel Sch 40 Black Hollow Section Q235 Square Metal Tube Carbon Steel Pipe

US $ 580-600 / Ton FOB
5 Tons (MOQ)
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JINAN XINCHENGYUAN IMPORT AND EXPORT CO.,LTD

Shandong, China Since 2021
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Size 40X40X2.5 Q195 Q235 Black Painting Color Square Pipe Weight, Steel Welded Square Hollow Section Iron Tube

Size 40X40X2.5 Q195 Q235 Black Painting Color Square Pipe Weight, Steel Welded Square Hollow Section Iron Tube

US $ 500-550 / Ton FOB
5 Tons (MOQ)
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TIANJIN SHENGTENG INTERNATIONAL TRADING CO., LTD.

Tianjin, China Since 2018
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Q195/Q235/Q345 Galvanized Steel Square/Rectangular Tube Welded Carbon/Pre-Galvanized Steel/Hot DIP Galvanized/Black Mild/ERW Gi Pipe

Q195/Q235/Q345 Galvanized Steel Square/Rectangular Tube Welded Carbon/Pre-Galvanized Steel/Hot DIP Galvanized/Black Mild/ERW Gi Pipe

US $ 550-650 / Ton FOB
10 Tons (MOQ)
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LIAOCHENG HUAJIAN STEEL CO., LTD.

Shandong, China Since 2016
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Black Hollow Section Carbon Steel Q235 Square Metal Tube 2-15mm Thickness Carbon Steel Pipe Rectangular Tube for Construction

Black Hollow Section Carbon Steel Q235 Square Metal Tube 2-15mm Thickness Carbon Steel Pipe Rectangular Tube for Construction

US $ 520-850 / Ton FOB
1 Ton (MOQ)
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Wuxi Jinbao Special Steel Co., Ltd.

Jiangsu, China Since 2023
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Wuxi Factory Ss Mild Welded Seamless Pipe 201 304 316 Q235 904L A106 Uns S32750 C276 Carbon Nickel Stainless Steel Pipe Black Galvanized Square Steel Pipe5 Top

Wuxi Factory Ss Mild Welded Seamless Pipe 201 304 316 Q235 904L A106 Uns S32750 C276 Carbon Nickel Stainless Steel Pipe Black Galvanized Square Steel Pipe5 Top

US $ 2,240-5,672 / Ton FOB
1 Ton (MOQ)
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Liaocheng Jiujiang Machinery Manufacturing Co., Ltd.

Manufacturer/Factory & Trading Company

Shandong, China Since 2025
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Q235/Q195/Q345/A36 Hot DIP Galvanized/Black Mild/ERW/Welded/Square/Aluminum/Stainless/Carbon Steel Tube/Pipe

Q235/Q195/Q345/A36 Hot DIP Galvanized/Black Mild/ERW/Welded/Square/Aluminum/Stainless/Carbon Steel Tube/Pipe

US $ 359-650 / tons FOB
1 tons (MOQ)
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Union Steel Industry Co., Ltd.

Trading Company

Hunan, China Since 2024
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Black Hollow Section Q195 Q345 Q235 Hot Rolled and Cold Rolled Carbon Steel Square Tube Carbon Steel Pipe Square Metal Tube

Black Hollow Section Q195 Q345 Q235 Hot Rolled and Cold Rolled Carbon Steel Square Tube Carbon Steel Pipe Square Metal Tube

US $ 410-476 / Ton FOB
1 Ton (MOQ)
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Shandong Hongcheng Steel Co., Ltd.

Trading Company

Shandong, China Since 2024
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ASTM A106 Gr. B Q235 A53 Sch40 Hot Rolled/Cold Drawn Black Iron Round/Square Carbon Seamless Steel Precision Ss Pipe

ASTM A106 Gr. B Q235 A53 Sch40 Hot Rolled/Cold Drawn Black Iron Round/Square Carbon Seamless Steel Precision Ss Pipe

US $ 440-460 / Ton FOB
5 Tons (MOQ)
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Liaocheng Shengteng New Material Co., Ltd.

Manufacturer/Factory & Trading Company

Shandong, China Since 2023
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Customized Q235 Q235B Q345 Q355 6m 12m Length Seamless Black Iron Metal Carbon Steel Pipe 40X40mm 50 X50mm ERW Square Round Carbon Seamless Welded Steel Pipe

Customized Q235 Q235B Q345 Q355 6m 12m Length Seamless Black Iron Metal Carbon Steel Pipe 40X40mm 50 X50mm ERW Square Round Carbon Seamless Welded Steel Pipe

US $ 500-520 / Ton FOB
2 Tons (MOQ)
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Jinan Zunkai Materials Co., Ltd.

Trading Company

Shandong, China Since 2021
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Q235 Q245 Grade B Black Carbon Steel Pipe 100*50mm Square Rectangular Tube

Q235 Q245 Grade B Black Carbon Steel Pipe 100*50mm Square Rectangular Tube

US $ 620-650 / Ton FOB
25 Tons (MOQ)
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Tianjin Jinnuo Steel Pipe Co., Ltd.

Manufacturer/Factory & Trading Company

Tianjin, China Since 2022
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Q235 Square / Rectangular / Round Black Welded Steel Pipe Steel Tube Hollow Section From China

Q235 Square / Rectangular / Round Black Welded Steel Pipe Steel Tube Hollow Section From China

US $ 455 / Ton FOB
10 Tons (MOQ)
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Shandong Xindarong Steel Pipe Manufacturing Co., Ltd.

Manufacturer/Factory

Shandong, China Since 2022
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Q195 Q235 Q355 Scrap Carbon Steel Pipe Black Carbon Fiber Square Pipes ERW Steel Hollow Section Tube

Q195 Q235 Q355 Scrap Carbon Steel Pipe Black Carbon Fiber Square Pipes ERW Steel Hollow Section Tube

US $ 3-30 / Piece FOB
100 Pieces (MOQ)
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Shandong Songnuo Composite Material Co., Ltd.

Shandong, China Since 2025
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Q235/Q195/Q345/A36/10*10-600*600mm/0.5-12.0mm/Pre Galvanized/Hot DIP Galvanized/Black Mild/ERW/Welded/Stainless/Square/Aluminum/Carbon Steel Tube/Pipe

Q235/Q195/Q345/A36/10*10-600*600mm/0.5-12.0mm/Pre Galvanized/Hot DIP Galvanized/Black Mild/ERW/Welded/Stainless/Square/Aluminum/Carbon Steel Tube/Pipe

US $ 1,600-2,100 / Ton FOB
1 Ton (MOQ)
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CHANGSHA YUXIN STEEL CO., LTD.

Hunan, China Since 2021
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Q195 Q215 Q235 Ss400 20*20 25*25 30*30 100*100 200*200 20*40 30*40 Black Carbon Galvanized Steel Seamless Square Rectangular Pipe/Tube

Q195 Q215 Q235 Ss400 20*20 25*25 30*30 100*100 200*200 20*40 30*40 Black Carbon Galvanized Steel Seamless Square Rectangular Pipe/Tube

US $ 420-570 / Ton FOB
1 Ton (MOQ)
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Shandong Meide Import and Export Co., Ltd.

Shandong, China Since 2023
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Factory Price Black Hollow Sectio Q235 Square Metal Annealed Black Square Carbon Steel Pipe Tube

Factory Price Black Hollow Sectio Q235 Square Metal Annealed Black Square Carbon Steel Pipe Tube

US $ 770-900 / Ton FOB
10 Tons (MOQ)
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Shanghai Ali-Mama Steel Trading Co., Ltd.

Shanghai, China Since 2022
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Q235 Seamless Welded Black Annealed Hollow Section Weight of Ms Light Square Large Diameter Rectangular Steel Pipe

Q235 Seamless Welded Black Annealed Hollow Section Weight of Ms Light Square Large Diameter Rectangular Steel Pipe

US $ 300-400 / Piece FOB
1 Piece (MOQ)
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Permanent Steel Manufacturing Co., Ltd.

Hunan, China Since 2022
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Q235 Q345 Ss400 Grade ERW Black Low Carbon Square Steel Pipe

Q235 Q345 Ss400 Grade ERW Black Low Carbon Square Steel Pipe

US $ 1 / Meter FOB
1 Meter (MOQ)
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Hebei Pipeline Equipment HN Co., Ltd.

Hainan, China Since 2017
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About Q235 B Black Square Steel Pipe FAQ

  • QWhat are the advantages of purchasing steel pipes and tubes in wholesale quantities?

    The Q235 B Black Square Steel Pipe is included in our comprehensive Steel Pipe & Tube range.Bulk purchasing of steel pipes and tubes offers cost savings, availability in large quantities, and consistent product quality. Wholesale orders often come with discounts and customization options, allowing you to procure high-quality materials from trusted suppliers at competitive prices.

  • QHow can I find trustworthy suppliers of steel pipes and tubes in China?

    Our Q235 B Black Square Steel Pipe offers exceptional quality and style within the Steel Pipe & Tube category.When looking for reliable suppliers in China, consider using platform tools, attending industry exhibitions, and consulting business directories. Verify the supplier's qualifications, request samples, and conduct thorough due diligence to ensure product quality and delivery reliability.

  • QWhat are the common types of steel used in manufacturing steel pipes and tubes?

    Our Q235 B Black Square Steel Pipe offers exceptional quality and style within the Steel Pipe & Tube category.Steel pipes and tubes are often made using carbon steel, stainless steel, and alloy steel. Each type offers unique properties, such as strength, corrosion resistance, and heat resistance. It is essential to consult with a reputable supplier for guidance on the best material for your specific applications.

Q235 Seamless Welded Black Annealed Hollow Section Weight of Ms Light Square Large Diameter Rectangular Steel Pipe

Q235 Seamless Welded Black Annealed Hollow Section Weight of Ms Light Square Large Diameter Rectangular Steel Pipe

US $ 430-550 / Ton FOB
1 Ton (MOQ)
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Tianjin Honest Steel Co., Ltd.

Tianjin, China Since 2020
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RSs-Zp517 Customized Q195/Q215/Q235 Hollow Section Black Annealed Square pipe Steel Tube

RSs-Zp517 Customized Q195/Q215/Q235 Hollow Section Black Annealed Square pipe Steel Tube

US $ 750-950 / Ton FOB
100 Tons (MOQ)
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Tianjin Weiming Industrial & Trading Co., Ltd.

Tianjin, China Since 2019
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ASTM A36 Q235 Black Square Steel Pipe

ASTM A36 Q235 Black Square Steel Pipe

US $ 500-600 / Ton FOB
1 Ton (MOQ)
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Audited Supplier
TIANJIN SHENGTENG INTERNATIONAL TRADING CO., LTD.

Tianjin, China Since 2018
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Q235/Q195/Q345/A36 Galvanized/Hot DIP Galvanized/Black Mild/ERW/Welded/Square/Aluminum/Stainless/Carbon Steel Tube/Pipe

Q235/Q195/Q345/A36 Galvanized/Hot DIP Galvanized/Black Mild/ERW/Welded/Square/Aluminum/Stainless/Carbon Steel Tube/Pipe

US $ 2,250-2,600 / Ton FOB
1 Ton (MOQ)
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Jiangsu Xinyuanxing Metal Products Co., Ltd.

Trading Company

Jiangsu, China Since 2024
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Q235 ASTM A106 Carbon Seamless Steel Pipes Black Iron Pipe Square Carbon Steel Tube for Furniture

Q235 ASTM A106 Carbon Seamless Steel Pipes Black Iron Pipe Square Carbon Steel Tube for Furniture

US $ 486-535 / Ton FOB
5 Tons (MOQ)
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Shandong Hongyan Metal Material Co., Ltd.

Trading Company

Shandong, China Since 2021
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Q235 Square Metal Black Hot Rolled Rectangular Tube ERW Steel Square Tubes Hollow Section Carbon Black Carbon Metal Ms Pipe

Q235 Square Metal Black Hot Rolled Rectangular Tube ERW Steel Square Tubes Hollow Section Carbon Black Carbon Metal Ms Pipe

US $ 412-488 / Ton FOB
3 Tons (MOQ)
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Shanghai Changzeng Metal Co., Ltd.

Shanghai, China Since 2016
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Light Weight Tube Section Mild Tubes S235 S355 Mild Steel Square Pipe Q235 Ms Square Hollow Section Rectangular and Square Black Carbon Steel Pipe

Light Weight Tube Section Mild Tubes S235 S355 Mild Steel Square Pipe Q235 Ms Square Hollow Section Rectangular and Square Black Carbon Steel Pipe

US $ 520 / Ton FOB
5 Tons (MOQ)
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Shandong Liaocheng Yuanhetai Steel Products Co., Ltd.

Manufacturer/Factory & Trading Company

Shandong, China Since 2017
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China Black Steel Pipe Q235 Q355 Hollow Black Square Tube ERW Pipe and Tube

China Black Steel Pipe Q235 Q355 Hollow Black Square Tube ERW Pipe and Tube

US $ 500-660 / Ton FOB
1 Ton (MOQ)
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Shandong Hanbang Materials Co., Ltd.

Trading Company

Shandong, China Since 2023
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Q235 Metal Square Carbon Steel Pipe Black Square Rectangular Tubes

Q235 Metal Square Carbon Steel Pipe Black Square Rectangular Tubes

US $ 670-689 / Ton FOB
5 Tons (MOQ)
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Yangtze Steel Group (China) Co., Ltd.

Trading Company

Shandong, China Since 2023
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Ms Hollow Section Hot Dipped Galvanized Square Tube Q235 Ss400 Q235B Q345b/Ss400 / A36 St37 Black Carbon Steel Pipe Zinc Coated Rectangular Tube

Ms Hollow Section Hot Dipped Galvanized Square Tube Q235 Ss400 Q235B Q345b/Ss400 / A36 St37 Black Carbon Steel Pipe Zinc Coated Rectangular Tube

US $ 580-680 / Ton FOB
5 Tons (MOQ)
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Shandong Baotai Steel Co., Ltd.

Trading Company

Shandong, China Since 2022
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China Q235 Black Galvanized Carbon Welded Metal Steel Pipe Hollow Section Square Tube with Lowest Price

China Q235 Black Galvanized Carbon Welded Metal Steel Pipe Hollow Section Square Tube with Lowest Price

US $ 800-850 / Piece FOB
1 Piece (MOQ)
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Shandong Baowu Steel Group Co., Ltd.

Trading Company

Shandong, China Since 2022
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Factory Price Pre-Galvanized Steel Pipe: 20-275G/M2 Black Hollow Steel Pipe Weight List Q195/Q235 Square and Rectangular Hollow Section Steel Pipe

Factory Price Pre-Galvanized Steel Pipe: 20-275G/M2 Black Hollow Steel Pipe Weight List Q195/Q235 Square and Rectangular Hollow Section Steel Pipe

US $ 550-750 / Ton FOB
30 Tons (MOQ)
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Tianjin New Yion International Trade Co., Ltd.

Tianjin, China Since 2019
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Q235 Carbon Steel Tube Square Metal Tube Black Hollow Section Carbon Pipe

Q235 Carbon Steel Tube Square Metal Tube Black Hollow Section Carbon Pipe

US $ 750-900 / Ton FOB
10 Tons (MOQ)
Contact Supplier
Audited Supplier
Jiangsu Ruilaibo Special Steel Co., Ltd.

Jiangsu, China Since 2023
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