CHANGZHOU RUIYUAN STEEL TUBE CO., LTD.

 

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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 Round carbon steel seamless pipe, seamless cold drawn/hot roll with OD 10 - 1220mm factory

Round carbon steel seamless pipe, seamless cold drawn/hot roll with OD 10 - 1220mm

Round carbon steel seamless pipe seamless cold drawn/hot roll with OD 10 - 1220mm SEAMLESS STEEL PIPE ASTM A106 / ASTM A53 / API 5L / EN10255 / EN10297 / EN10216 / GB8162 / GB8163 Surface Treatment: Oiling... Read More
2017-03-14 13:47:38
China Galvanized Non-Alloy Steel U Bend Pipe Seamless Steel Tube For Heat Exchanger factory

Galvanized Non-Alloy Steel U Bend Pipe Seamless Steel Tube For Heat Exchanger

Galvanized Non-Alloy Steel U Bend Pipe Seamless Steel Tube For Heat Exchanger EN10216-1 SEAMLESS CARBON STEEL HIGH PRESSURE PIPE, U BEND PIPE EN10216-1 Part 1: Non-Alloy steel tubes with specified room ... Read More
2017-03-14 13:47:38
China Hollow Steel ASTM A333 Cold Drawn Seamless Tube 1 / 8 - 4 Inch OD , 1 - 12mm WT factory

Hollow Steel ASTM A333 Cold Drawn Seamless Tube 1 / 8 - 4 Inch OD , 1 - 12mm WT

Hollow Steel ASTM A333 Cold Drawn Seamless Tube 1 / 8 - 4 Inch OD , 1 - 12mm WT SPECIFICATIONS: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps Marking: ... Read More
2017-03-14 13:47:38
China Seamless Cold Drawn Steel Tube Standard DIN1630 , OD 16mm - 90mm factory

Seamless Cold Drawn Steel Tube Standard DIN1630 , OD 16mm - 90mm

Seamless Cold Drawn Steel Tube Standard DIN1630 , OD 16mm - 90mm Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: PE, ends caps Marking: as per requirement ... Read More
2017-03-14 13:47:38
China Big OD Hot Finished Pipe ASTM A53 A106 Carbon Steel factory

Big OD Hot Finished Pipe ASTM A53 A106 Carbon Steel

Big OD Hot Finished Pipe ASTM A53 A106 Carbon Steel Specifications: ASTM A53/A53M(ASME SA53/53M) Seamless Steel Pipes Steel Grade: A/B Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating ... Read More
2017-03-14 13:47:38
China Circular steel seamless pipes for Boiler / Pipe Line / Fluid Transportation factory

Circular steel seamless pipes for Boiler / Pipe Line / Fluid Transportation

Circular steel seamless pipes for Boiler / Pipe Line / Fluid Transportation 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 ASME SA333 Gr.6 seamless steel tube for Low Temperature , OD30mm factory

ASME SA333 Gr.6 seamless steel tube for Low Temperature , OD30mm

ASME SA333 Gr.6 seamless steel tube for Low Temperature , OD30mm SPECIFICATIONS: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps Marking: as per ... Read More
2017-03-14 14:04:25
China Carbon Steel Heat Exchange Tube Thickness , Heat Resisting Seamless Boiler Tube factory

Carbon Steel Heat Exchange Tube Thickness , Heat Resisting Seamless Boiler Tube

Carbon Steel Heat Exchange Tube Thickness , Heat Resisting Seamless Boiler Tube EN10216-1 SEAMLESS CARBON STEEL HIGH PRESSURE PIPE EN10216-1 Part 1: Non-Alloy steel tubes with specified room temperature ... Read More
2017-03-14 13:47:38
China Carbon Steel Cold Drawn Seamless Tubing factory

Carbon Steel Cold Drawn Seamless Tubing

ASME SA179 Cold Drawn Seamless Tubing , Low Carbon Steel Pipe For Heat-Exchanger COLD DRAWN SEAMLESS CARBON STEEL TUBE Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating Ends: BE/PE, ends ... Read More
2015-11-11 15:47:26
China High Performance Cold Drawn Seamless Tube DIN1630 ST37.4 / 1.0255 OD42mm factory

High Performance Cold Drawn Seamless Tube DIN1630 ST37.4 / 1.0255 OD42mm

High Performance Cold Drawn Seamless Tube DIN1630 ST37.4 / 1.0255 OD42mm Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: PE, ends caps Marking: as per ... Read More
2017-03-14 14:06:33
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