CHANGZHOU RUIYUAN STEEL TUBE CO., LTD.

 

We are leading manufacturer of CDS and HFS pipes and Tubes.

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seamless black steel pipe

Good quality Seamless Boiler Tubes for sales
Good quality Seamless Boiler Tubes for sales
RUIYUAN is a reliable supplier, we trust in them and already cooperated for 5 years. They offer good and stable quality, best service and price.

—— Mr.Wang from SINOPEC

As we've cooperated more than 7 years, RUIYUAN is not only a business partner, but also became a very best friend for us.

—— Mr.Sanjay Bajaj

They will always keep their words, and always put customer's benefit on first consideration, that's why we chose them as a long-term business partner!

—— Mr.Thomas BIttig

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seamless black steel pipe

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China Seamless Cold Drawn Heavy Wall Steel Pipe To Auto / Mechanical Tube factory

Seamless Cold Drawn Heavy Wall Steel Pipe To Auto / Mechanical Tube

Seamless Cold Drawn Heavy Wall Steel Pipe To Auto / Mechanical Tube HEAVY WALL STEEL TUBE FOR AUTO / MECHANICAL TUBE Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating... Read More
2017-03-14 13:47:38
China Mechanical Cold Drawn Heavy Wall Steel Tube Seamless Carbon Steel Tubing factory

Mechanical Cold Drawn Heavy Wall Steel Tube Seamless Carbon Steel Tubing

Mechanical Cold Drawn Heavy Wall Steel Tube Seamless Carbon Steel Tubing Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling/As per requirement Ends: PE/BE ends ... Read More
2017-03-14 13:47:38
China Hydraulic Mild Steel Pipe 8mm Thickness , Seamlss Carbon And Alloy Steel Tube ASTM A519 factory

Hydraulic Mild Steel Pipe 8mm Thickness , Seamlss Carbon And Alloy Steel Tube ASTM A519

Hydraulic Mild Steel Pipe 8mm Thickness , Seamlss Carbon And Alloy Steel Tube ASTM A519 SPECIFICATIONS: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps ... Read More
2017-03-14 13:47:38
China EN10255 S195T Non - Alloy Hot Finished Seamless Pipe Suitable for Welding and Threading factory

EN10255 S195T Non - Alloy Hot Finished Seamless Pipe Suitable for Welding and Threading

EN10255 S195T Non - Alloy Hot Finished Seamless Pipe Suitable for Welding and Threading Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps ... Read More
2017-03-14 13:47:38
China Hot–Dipped Black Carbon Steel Seamless Pipe Of Steam / Water And Gas factory

Hot–Dipped Black Carbon Steel Seamless Pipe Of Steam / Water And Gas

HotDipped Seamless Black Steel Pipe Carbon Steel Tubes Of Steam And Water Specifications: ASTM A53/A53M(ASME SA53/53M) Seamless Steel Tubes Steel Grade: A/B Surface Treatment: Oiling/Black painting/Varnish... Read More
2017-03-14 13:47:38
China Black Painting Carbon Steel Seamless Pipe / Seamless Mechanical Tubing factory

Black Painting Carbon Steel Seamless Pipe / Seamless Mechanical Tubing

Black Painting Carbon Steel Seamless Pipe / Seamless Mechanical Tubing ASTM A179(ASME SA179) Carbon Steel Seamless Pipes Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating Ends: BE/PE, ... Read More
2017-03-14 13:47:38
China High Pressure Cold Drawn Seamless Tube Carbon Steel Pipe,  Black Painting factory

High Pressure Cold Drawn Seamless Tube Carbon Steel Pipe, Black Painting

High Pressure Cold Drawn Seamless Tube Carbon Steel Pipe, Black Painting ASTM A106 ( ASME SA106 ) GRADE A/B/C COLD DRAWN SEAMLESS TUBE FOR PRESSURE SERVICE Specifications: Steel Grade: A/B/C Surface Treatment: ... Read More
2017-03-14 13:47:38
China Heat Exchanger Carbon Steel Seamless Tube With Varnish / Black Painted Surface factory

Heat Exchanger Carbon Steel Seamless Tube With Varnish / Black Painted Surface

Heat Exchanger Carbon Steel Seamless Tube With Varnish / Black Painted Surface Specifications: ASTM A106 COLD DRAWN SEAMLESS CARBON STEEL TUBE Steel Grade: A/B/C Surface Treatment: Bare/Oiling/Black painting... Read More
2017-03-14 13:47:38
China 1/8 – 3 Inch ASTM A179 Carbon Steel Seamless Pipe With Wooden Box Packing factory

1/8 – 3 Inch ASTM A179 Carbon Steel Seamless Pipe With Wooden Box Packing

1/8 3 Inch ASTM A179 Carbon Steel Seamless Pipe With Wooden Box Packing ASTM A179 ( ASME SA179 ) COLD DRAWN SEAMLESS CARBON STEEL PIPE FOR HEAT - EXCHANGER AND CONDENSER Surface Treatment: Oiling/Black painting... Read More
2017-03-14 13:57:12
China 1/8 – 3 Inch Cold Drawn Seamless Steel Pipe, Standard ASTM A179 factory

1/8 – 3 Inch Cold Drawn Seamless Steel Pipe, Standard ASTM A179

1/8 3 Inch Cold Drawn Seamless Steel Pipe Standard ASTM A179 ASTM A179 ( ASME SA179 ) COLD DRAWN SEAMLESS CARBON STEEL PIPE FOR HEAT - EXCHANGER AND CONDENSER Surface Treatment: Oiling/Black painting/Varnish... Read More
2017-03-14 13:47:38
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