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 Mechanical JIS G 3461 Seamless Boiler Tube Wall Thickness 12mm Carbon Steel Pipe factory

Mechanical JIS G 3461 Seamless Boiler Tube Wall Thickness 12mm Carbon Steel Pipe

Mechanical JIS G 3461 Seamless Boiler Tube Wall Thickness 12mm Carbon Steel Pipe Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE, ends caps Marking: as ... Read More
2017-03-14 13:47:38
China Hydraulic Round Alloy Steel Tubes 6m 9m 12m , Industrial Seamless Steel Pipe factory

Hydraulic Round Alloy Steel Tubes 6m 9m 12m , Industrial Seamless Steel Pipe

Hydraulic Round Alloy Steel Tubes 6m 9m 12m , Industrial Seamless Steel Pipe Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE, ends caps Marking: as per ... Read More
2017-03-14 13:47:38
China High Strength JIS G 3462 Alloy Steel Pipe Seamless For Boiler / Super Heater factory

High Strength JIS G 3462 Alloy Steel Pipe Seamless For Boiler / Super Heater

High Strength JIS G 3462 Alloy Steel Pipe Seamless For Boiler / Super Heater Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE, ends caps Marking: as per ... Read More
2017-03-14 13:47:38
China Thin Wall Carbon Steel Seamless Pipe factory

Thin Wall Carbon Steel Seamless Pipe

Large Diameter Thin Wall Carbon Seamless Steel Pipe / Seamless Mechanical Tubing Specifications: Surface Treatment: Bare/Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling/As per requirement Ends: ... Read More
2015-11-11 15:53:17
China Custom Seamless Carbon Steel U Bend Pipe For Boiler And Superhearter factory

Custom Seamless Carbon Steel U Bend Pipe For Boiler And Superhearter

Custom Seamless Carbon Steel U Bend Pipe For Boiler And Superhearter Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE, ends caps Marking: as per ... Read More
2017-03-14 13:47:38
China JIS G 3454 Carbon Steel High Pressure Steel Pipe , Black Painting Surface factory

JIS G 3454 Carbon Steel High Pressure Steel Pipe , Black Painting Surface

JIS G 3454 Carbon Steel High Pressure Steel Pipe , Black Painting Surface Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps Marking: as per ... Read More
2017-03-14 13:47:38
China Carbon Steel Seamless Tube, Cold Drawn, Size 32 * 2.5 mm, Hot Finished, bare tube factory

Carbon Steel Seamless Tube, Cold Drawn, Size 32 * 2.5 mm, Hot Finished, bare tube

CARBON STEEL SEAMLESS TUBE SIZE 32 * 2.5 MM FOR STRUCTURE / BOILER / PETRO-CHEMICAL / FLUID TRANSPORTATION / AUTO PARTS Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating... Read More
2015-12-22 17:28:04
China Seamless Carbon Steel Heat Exchanger Tubes JIS G 3461 STB340 STB410 factory

Seamless Carbon Steel Heat Exchanger Tubes JIS G 3461 STB340 STB410

Seamless Carbon Steel Heat Exchanger Tubes JIS G 3461 STB340 STB410 Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE, ends caps Marking: as per ... Read More
2017-03-14 13:47:38
China 1/8 - 26 Inch Seamless Carbon Steel High Pressure Steel Tube Wall Thickness  factory

1/8 - 26 Inch Seamless Carbon Steel High Pressure Steel Tube Wall Thickness 

1/8 - 26 Inch Seamless Carbon Steel High Pressure Steel Tube Wall Thickness Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps Marking: as ... Read More
2017-03-14 13:47:38
China High Pressure Heat Exchanger Tubes For Oil / Gas And Steam , Cold Drawn Steel Pipes factory

High Pressure Heat Exchanger Tubes For Oil / Gas And Steam , Cold Drawn Steel Pipes

High Pressure Heat Exchanger Tubes For Oil / Gas And Steam , Cold Drawn Steel Pipes Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps ... Read More
2017-03-14 13:47:38
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