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Precision Steel Tube

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Quality JIS G3455 Seamless Carbon Oiled Surface Precision Steel Tube for High Pressure Service factory

JIS G3455 Seamless Carbon Oiled Surface Precision Steel Tube for High Pressure Service

JIS G3455 Seamless Carbon Steel Tube Pipes for High-Pressure Service Applications for JIS G3455...
Quality Bright Annealing Precision Steel Tube Hospital Needle Stainless Steel Capillary Tube factory

Bright Annealing Precision Steel Tube Hospital Needle Stainless Steel Capillary Tube

Bright Annealing 304 316 0.8mm 0.5mm Medical Grade Hospital Needle Stainless Steel Tube Capillary...
Quality Small Precision Steel Tube Disposable SS Needle Blunts ISO 9001 ASTM A269 factory

Small Precision Steel Tube Disposable SS Needle Blunts ISO 9001 ASTM A269

¼" ½ - 2" Length Disposable SS Needle Blunts Disposable Dispensing Needle Blunts...
Quality JIS 3455 Hot Finished or Cold Finished Pecision Seamless Steel Tubes Fluid Pipes factory

JIS 3455 Hot Finished or Cold Finished Pecision Seamless Steel Tubes Fluid Pipes

JIS 3455 Hot Finished or Cold Finished Pecision Seamless Steel Tubes Fluid Pipes Product name:...
Quality Seamless Precision Metal Tubing Cold Drawn Steel Pipe DIN2391 factory

Seamless Precision Metal Tubing Cold Drawn Steel Pipe DIN2391

Seamless Precision Metal Tubing Cold Drawn Steel Pipe DIN2391 DIN 2391 steel pipes for hydraulic...
Quality Cold Drawn Precision Steel Tube for  Gas Springs EN10305-2 E235 E355 Pipe factory

Cold Drawn Precision Steel Tube for Gas Springs EN10305-2 E235 E355 Pipe

Cold Drawn Precision Steel Tube for Gas Springs EN10305-2 E235 E355 Pipe 1. Introduction of...

Seamless Steel Tube

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Quality Q355B Seamless Cold Drawn Steel Tube Low Alloy Steel Pipe For Precision factory

Q355B Seamless Cold Drawn Steel Tube Low Alloy Steel Pipe For Precision

Q355B Seamless Cold Drawn Steel Tube Low Alloy Steel Pipe For Precision Applications Material...
Quality DIN 2393-2 St44.2 Cold Drawn Welded Tube ERW Carbon Precision Steel Tube For Automobile factory

DIN 2393-2 St44.2 Cold Drawn Welded Tube ERW Carbon Precision Steel Tube For Automobile

DIN 2393-2 E235 ST37.2, ST52.3, STKM11, STKM12 Cold Drawn Welded Tube ERW Carbon Steel Precision...
Quality 13CrMo4-5 Chrome Moly Pipe Alloy Seamless Steel Tubes For Pressure Purposes factory

13CrMo4-5 Chrome Moly Pipe Alloy Seamless Steel Tubes For Pressure Purposes

13CrMo4-5 Chrome Moly Pipe Alloy Seamless Steel Tubes For Pressure Purposes Material 13CrMo4-5 is...
Quality 12Cr2Mo Structural Round Tubing Alloy Steel Seamless Steel Tubes For Petroleum Cracking factory

12Cr2Mo Structural Round Tubing Alloy Steel Seamless Steel Tubes For Petroleum Cracking

12Cr2Mo Structural Round Tubing Alloy Steel Seamless Steel Tubes For Petroleum Cracking Material...
Quality L360 Hot Rolled Steel Pipe Carbon Steel Seamless Pipe For Petroleum And Petrochemical factory

L360 Hot Rolled Steel Pipe Carbon Steel Seamless Pipe For Petroleum And Petrochemical

L360 Hot Rolled Steel Pipe: Carbon Steel Seamless Pipe for Petroleum and Petrochemical Material...
Quality 16mo3 Seamless Boiler Tube Alloy Steel Seamless Tubes Of Heat Resistant Steels factory

16mo3 Seamless Boiler Tube Alloy Steel Seamless Tubes Of Heat Resistant Steels

16Mo3 Seamless Boiler Tube: Alloy Steel Seamless Tubes of Heat-Resistant Steels Material...

Stainless Steel Tube

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Quality Dn200 Astm 790 2507 / 2205 / 31803 / 32750 Duplex Stainless Steel Pipe/tube For Fluid And Gas Transport factory

Dn200 Astm 790 2507 / 2205 / 31803 / 32750 Duplex Stainless Steel Pipe/tube For Fluid And Gas Transport

Dn200 Astm 790 2507 / 2205 / 31803 / 32750 Duplex Stainless Steel Pipe/tube For Fluid And Gas...
Quality GOST 9940 Corrosion Resistant 28mm Stainless Steel Tube , Hot Finished Seamless Tube factory

GOST 9940 Corrosion Resistant 28mm Stainless Steel Tube , Hot Finished Seamless Tube

GOST 9940 Seamless Hot-finished Steel Tubes of Corrosion-resistant Steel Application : For...
Quality ASTM A790 S31200 Seamless Ferritic Austenitic Stainless Steel Pipe For General Purpose factory

ASTM A790 S31200 Seamless Ferritic Austenitic Stainless Steel Pipe For General Purpose

ASTM A790 S31200 S31260 S31500 S31803 S32003 Seamless Ferritic Austenitic Stainless Steel Pipe...
Quality GB/T 21833.3 S22253 Duplex Stainless Steel Pipe Seamless Austenitic Stainless Steel Tubes For Oil factory

GB/T 21833.3 S22253 Duplex Stainless Steel Pipe Seamless Austenitic Stainless Steel Tubes For Oil

GB/T 21833.3 S22253 S22053 S25203 S22553 S22583 Duplex Stainless Steel Pipe Seamless Austenitic...
Quality ASTM A778 TP304L Stainless Steel Tubing Welded Unannealed Austenitic Stainless Steel Tubular For Medical factory

ASTM A778 TP304L Stainless Steel Tubing Welded Unannealed Austenitic Stainless Steel Tubular For Medical

ASTM A778 TP304L TP316L TP317L TP321 TP347 Welded Unannealed Austenitic Stainless Steel Tubular...
Quality TP 304L Stainless Steel Capillary Tube Seamless Austenitic Stainless Steel Pipe For Medical factory

TP 304L Stainless Steel Capillary Tube Seamless Austenitic Stainless Steel Pipe For Medical

TP 304L Stainless Steel Capillary Tube: Seamless Austenitic Stainless Steel Pipe for Medical...

Automotive Steel Tubes

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Quality ASTM B337 ASTM B861 Automotive Steel Tubes Chemical Processing Custom Size factory

ASTM B337 ASTM B861 Automotive Steel Tubes Chemical Processing Custom Size

ASTM B337 ASTM B861 Gr1 Gr2 Gr3 Gr5 Gr7 Gr9 Gr11 Gr12Chemical processing Oil and chemicals...

Welded Steel Tube

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Quality JIS G3442 SGPW Welded Steel Tube Galvanized Steel Pipes For Ordinary Piping factory

JIS G3442 SGPW Welded Steel Tube Galvanized Steel Pipes For Ordinary Piping

JIS G3442 SGPW Welded Steel Tube Galvanized Steel Pipes for Ordinary Piping Introduction JIS...
Quality Hydraulic Cylinder Precision Welded Steel Pipe ASTM A513 Cold Drawn DOM Tubes factory

Hydraulic Cylinder Precision Welded Steel Pipe ASTM A513 Cold Drawn DOM Tubes

Hydraulic Cylinder Precision Cold Drawn Welded Steel Pipe ASTM A513 DOM Tubes ASTM A513...
Quality GOST 30245 C235 Welded Steel Tube Square And Rectangular Steel Tube For Building factory

GOST 30245 C235 Welded Steel Tube Square And Rectangular Steel Tube For Building

GOST 30245 C235 C345 C390 C440 Welded Steel Tube Introduction GOST 30245 is a standard that...
Quality EN 10255 S195T Welded Welding And Threading Non Alloy Steel Tubes For Automobile factory

EN 10255 S195T Welded Welding And Threading Non Alloy Steel Tubes For Automobile

EN 10255 S195T Welded Steel Tube: Welding And Threading Non-Alloy Steel Tubes For Automobile...
Quality EN 10217-6 P265NL Welded Submerged Arc Welded Non Alloy Steel Tubes For Pressure Purposes factory

EN 10217-6 P265NL Welded Submerged Arc Welded Non Alloy Steel Tubes For Pressure Purposes

EN 10217-6 P215NL P265NL Welded Steel Tubes: Submerged Arc Welded Non-Alloy Steel Tubes For...
Quality EN 10217-5 P235GH Welded Steel Tube Submerged Are Welded For High Temperature Service factory

EN 10217-5 P235GH Welded Steel Tube Submerged Are Welded For High Temperature Service

EN 10217-5 P235GH P265GH 16Mo3 Welded Steel Tube Submerged Arc Welded for High Temperature...

DOM Steel Tube

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Quality Drawn Over Mandrel Steel Tube SAE J525 ERW Cold Drawn Seamless Tube Annealed factory

Drawn Over Mandrel Steel Tube SAE J525 ERW Cold Drawn Seamless Tube Annealed

Drawn Over Mandrel Steel Tube SAE J525 ERW Cold Drawn Seamless Tube Annealed Quick Detail: SAE...
Quality ASTM A513 Electric Resistance Welded Carbon and Alloy Steel Mechanical Tubing factory

ASTM A513 Electric Resistance Welded Carbon and Alloy Steel Mechanical Tubing

ASTM A513 Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing Size range:...
Quality EN10305-2 GB/T3639 E155, E195, E235 E275, E355 DOM Steel Tube Welded Carbon Steel Pipe for Hydraulic Steel Tubing factory

EN10305-2 GB/T3639 E155, E195, E235 E275, E355 DOM Steel Tube Welded Carbon Steel Pipe for Hydraulic Steel Tubing

DOM Welded Carbon Steel Pipe EN10305-2 for Hydraulic Steel Tubing E155, E195, E235 E275, E355...

Special Steel Pipe

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Quality Painted Rifle Seamless Carbon Steel Pipe With Fin On Two Sides factory

Painted Rifle Seamless Carbon Steel Pipe With Fin On Two Sides

Painted Rifle Seamless Carbon Steel Pipe With Fin On Two Sides Seamless Rifle Steel Tube, it is...
Quality Galvanized Special Steel Pipe Cold Drawn Steel Pipes OD 5-420mm factory

Galvanized Special Steel Pipe Cold Drawn Steel Pipes OD 5-420mm

Galvanized Special Steel Pipe Cold Drawn Steel Pipes OD 5-420mm Torich is professional...
Quality Lemon Shape Alloy Steel Seamless Pipes Used In Agricultural Machines factory

Lemon Shape Alloy Steel Seamless Pipes Used In Agricultural Machines

Lemon Shape Alloy Steel Seamless Pipes Used In Agricultural Machines Torich is a specialized in...
Quality Non Alloy Seamless Special Steel Pipe Omega Tube Material 20G For Boilers factory

Non Alloy Seamless Special Steel Pipe Omega Tube Material 20G For Boilers

Non Alloy Seamless Special Steel Pipe Omega Tube Material 20G For Boilers Special Steels Seamless...
Quality OD 5 - 420mm Special Steels Omega Tube 0.5mm - 50mm Thickness factory

OD 5 - 420mm Special Steels Omega Tube 0.5mm - 50mm Thickness

OD 5 - 420mm Special Steels Omega Tube 0.5mm - 50mm Thickness Material: SAE1010 , SAE1020 ,...
Quality 1010 1020 1045 ST35 ST37 ST44 ST52 Special Triangle Steel Tube factory

1010 1020 1045 ST35 ST37 ST44 ST52 Special Triangle Steel Tube

1010 1020 1045 ST35 ST37 ST44 ST52 Special Triangle Steel Tube Standard: GB / T 13973 - 1992...

Alloy Steel Pipe

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Quality Air Condition Alloy Steel Pipe , C11000 Copper Capillary Tube For Refrigerator factory

Air Condition Alloy Steel Pipe , C11000 Copper Capillary Tube For Refrigerator

TORICH C11000 Capillary Coil Copper Pipe Copper Tube for Air Condition Or Refrigerator Product...
Quality C11000 Capillary Copper Pipe Coil Non - Alloy For Air Condition / Refrigerator factory

C11000 Capillary Copper Pipe Coil Non - Alloy For Air Condition / Refrigerator

C11000 Capillary Coil Copper Pipe Copper Tube for Air Condition Or Refrigerator C11000 Capillary...
Quality UNS N06600 UNS N06617 UNS N06674 Nickel Alloy Steel Seamless Pipe and Tube factory

UNS N06600 UNS N06617 UNS N06674 Nickel Alloy Steel Seamless Pipe and Tube

TORICH ASTM B167 UNS N06600 UNS N06617 UNS N06674 Nickel Alloy Steel Seamless Pipe and Tube...
Quality Cold Drawn / Rolled Alloy Steel Pipe Seamless For Gear Wheel Axle Shaft factory

Cold Drawn / Rolled Alloy Steel Pipe Seamless For Gear Wheel Axle Shaft

Seamless Cold Drawn Or Cold Rolled Alloy Steel Tubing 41Cr4 40Cr DIN1.7035 For Gear Wheel , Axle...
Quality Structural Alloy Steel Seamless Pipes Round Shape Gb/t3077 38crmoal 41cralmo74 factory

Structural Alloy Steel Seamless Pipes Round Shape Gb/t3077 38crmoal 41cralmo74

TORICH GB/T3077 Seamless Structural Alloy Steel Pipe 38CrMoAl ISO 41CrAlMo74 Product Description:...
Quality Astm A213-2001 Alloy Steel Pipe Seamless Cold Drawn For Power Generation factory

Astm A213-2001 Alloy Steel Pipe Seamless Cold Drawn For Power Generation

ASTM A213-2001 Cold Drawn Seamless Alloy Steel and Pipe alloy steel and pipe Material : Titanimu...

CNC Machining Parts

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Quality Shaft Sleeve Chrome Plating Cnc Machining Parts Custom Aluminum factory

Shaft Sleeve Chrome Plating Cnc Machining Parts Custom Aluminum

Shaft Sleeve CNC Machining Part Product description Material:Non-ferrous alloy material like...
Quality Outboard Machinery Precision Cast Parts Excavator Auto Jet Motor Diesel Engine Spare Parts factory

Outboard Machinery Precision Cast Parts Excavator Auto Jet Motor Diesel Engine Spare Parts

outboard machinery excavator auto jet motor diesel spare engine spare parts Outboard machine:...
Quality Motorcycle Parts Accessories Stainless Steel Die Casting factory

Motorcycle Parts Accessories Stainless Steel Die Casting

Stainless Die Casting Motorcycle Parts Accessories Cold Forging Steel Auto Tool Part Definition...
Quality Precise Torich Cnc Machining Parts 304 Stainless Steel factory

Precise Torich Cnc Machining Parts 304 Stainless Steel

304 Stainless Steel CNC Machining Parts Used in Precise CNC Machining and CNC Cutting Service...
Quality Precision Milling ABS Cnc Machine Spare Parts For Auto Parts factory

Precision Milling ABS Cnc Machine Spare Parts For Auto Parts

Precision CNC Milling Parts for Auto Parts Used in CNC Machining Services We offer multi-axis CNC...
Quality Parmirror Polishing SUS304 Cnc Machining Parts Precision factory

Parmirror Polishing SUS304 Cnc Machining Parts Precision

Mirror Polishing CNC Machining for Auto Engine Parts used in CNC Machining Product Material...

Heat Exchanger Tubes

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Quality JIS G3461 Seamless And Welded Carbon Steel Tube For Boiler factory

JIS G3461 Seamless And Welded Carbon Steel Tube For Boiler

JIS G3461 Seamless and welded carbon steel pipes for boiler pipe and heat-exchanger Type:...
Quality JIS G3461 Carbon Steel Tubes For Boiler And Heat Exchanger factory

JIS G3461 Carbon Steel Tubes For Boiler And Heat Exchanger

JIS G3461 Carbon Steel Tubes for Boiler and Heat Exchanger Scope:JIS G3461 Carbon Steel Tubes is...
Quality Jis G3462 Alloy Steel Boiler And Heat Exchanger Tubes factory

Jis G3462 Alloy Steel Boiler And Heat Exchanger Tubes

JIS G3462 ALLOY STEEL BOILER AND HEAT EXCHANGER TUBES JIS Specification alloy steel Tubes are...
Quality Seamless Welded JIS G3460 Carbon Steel Tube For Low Temperature Service factory

Seamless Welded JIS G3460 Carbon Steel Tube For Low Temperature Service

JIS G3460 Seamless and welded carbon steel tube for low temperature service JIS G3460 Carbon...
Quality Heat Treatment 12000mm EN10216-2 Steel Hydraulic Tubing factory

Heat Treatment 12000mm EN10216-2 Steel Hydraulic Tubing

EN10216-2 Seamless Non-Alloy and Alloy Steel Tubes for Pressure Purposes with Specified Elevated...
Quality Annealed Finned ASTM A213 Ferritic Alloy Steel Tube factory

Annealed Finned ASTM A213 Ferritic Alloy Steel Tube

ASTM A213 Seamless Ferritic and Austenitic Alloy-Steel Boiler, Super heater, and Heat-Exchanger...

U Bend Tube

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Quality ISO9001-2008 Approved SA213 U Bend Tube , Bending Stainless Steel Tubing factory

ISO9001-2008 Approved SA213 U Bend Tube , Bending Stainless Steel Tubing

Seamless Steel Tubes SA213 U tubes for boilers and heat exchangers applications OD:6-127mm...
Quality High Pressure Seamless Carbon Bend Steel Tubing With Wall Thickness 1-15mm factory

High Pressure Seamless Carbon Bend Steel Tubing With Wall Thickness 1-15mm

Seamless Carbon Steel Boiler Tubes for High-Presure Service Size range: O.D.:6-168mm W.T.:1-15mm...
Quality Low Carbon Heat Exchanger Seamless Steel Tube , ASTM A179 U Bend Tubes factory

Low Carbon Heat Exchanger Seamless Steel Tube , ASTM A179 U Bend Tubes

Low Carbon Heat Exchanger Seamless Steel Tube , ASTM A179 U Bend Tubes PRODUCT DETAILS :...
Quality JIS G 3461 Seamless Carbon Bending Steel Tubing For Boiler / Heat Exchanger factory

JIS G 3461 Seamless Carbon Bending Steel Tubing For Boiler / Heat Exchanger

JIS G 3461 Seamless Carbon Bending Steel Tubing For Boiler / Heat Exchanger JIS G 3461 Seamless...
Quality JIS G 3461 Seamless Carbon Steel U Bend Tube For Boiler / Heat Exchanger factory

JIS G 3461 Seamless Carbon Steel U Bend Tube For Boiler / Heat Exchanger

JIS G 3461 Seamless carbon Steel tubes for boiler and heat exchanger Size range:OD...

Drill Steel Pipe

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Quality 37SiMn 38CrMoAl Alloy Steel Grade Drill Steel Pipe , Mineral Mining Seamless Steel Tubes factory

37SiMn 38CrMoAl Alloy Steel Grade Drill Steel Pipe , Mineral Mining Seamless Steel Tubes

Product Name: JIS G3465 Alloy Steel Grade Oil Drill Mineral Mining Seamless Steel Tubes Size...
Quality ASTM A519 4130 4140 +N  Q+T Seamless Drilling Steel Pipe for Geological Exploration factory

ASTM A519 4130 4140 +N Q+T Seamless Drilling Steel Pipe for Geological Exploration

ASTM A519 4130 4140 +N Q+T Seamless Drilling Steel Pipe for Geological Exploration Standard: ASTM...
Quality 5-420mm Diameter Seamless Drill Steel Pipe With JIS G 3465 STMC-C-540 , STMC-C-640 factory

5-420mm Diameter Seamless Drill Steel Pipe With JIS G 3465 STMC-C-540 , STMC-C-640

JIS G 3465 STMC-C-540 , STMC-C-640 , STM-R-590 , STM-R-690 , STM-R-780 , STM-R-830 Seamless Steel...
Quality JIS G 3465 Drill Steel Pipe , Seamless Steel Tubes for Drilling / Mineral Exploration factory

JIS G 3465 Drill Steel Pipe , Seamless Steel Tubes for Drilling / Mineral Exploration

JIS G 3465 Seamless Drill Steel Pipes and Tubes for Drilling for mineral exploration JIS G 3465...
Quality Drill Steel Pipe For Mineral Mining , Alloy Steel Grade Oil Drill Pipe factory

Drill Steel Pipe For Mineral Mining , Alloy Steel Grade Oil Drill Pipe

Drill Pipes for Oil and Mineral Mining Applications: For Geological Drill underground for Oil and...

Hydraulic Cylinder Tube

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Quality Precision Hydraulic Cylinder Tube , DIN2391 Galvanized Carbon Steel Pipe factory

Precision Hydraulic Cylinder Tube , DIN2391 Galvanized Carbon Steel Pipe

DIN2391 St 30SI, St 30 Al, St35,St45, St52, Hydraulic Cylinder Tubes Cold Drawn Seamless Steel...
Quality JIS G 3473 Hydraulic Cylinder Tube ,  Round Carbon Steel Tube for Cylinder Barrels factory

JIS G 3473 Hydraulic Cylinder Tube , Round Carbon Steel Tube for Cylinder Barrels

JIS G 3473 is the production standard Torich follow to manufacture Hydraulic Cylinder Carbon...
Quality High Tensile Thin Wall Hydraulic Cylinder Tube Weld Seam Removed Surface factory

High Tensile Thin Wall Hydraulic Cylinder Tube Weld Seam Removed Surface

TORICH High Tensile Thin Wall 34mm MS 1010 Plastic End Caps for AISI 1020 46mm 4130 Carbon...
Quality GB 18248 37Mn 30CrMo Seamless Hydraulic Cylinder Tube for Gas Cylinder factory

GB 18248 37Mn 30CrMo Seamless Hydraulic Cylinder Tube for Gas Cylinder

Seamless Steel Tubes for Gas Cylinder GB 18248 37Mn 30CrMo SPEC:Material:37Mn 30CrMo 34CrMo4...

Nickel Alloy Tube

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Quality ASTM B163 Corrosion Resistance Monel 400 Nickel Alloy Pipe factory

ASTM B163 Corrosion Resistance Monel 400 Nickel Alloy Pipe

Alloy Monel 400 Nickel Alloy Pipe Different Standard Monel 400 UNS N04400 DIN W. Nr. 2.4360,...
Quality ASTM B444 Nickel Alloy 625 Inconel Tube For  Power Plants factory

ASTM B444 Nickel Alloy 625 Inconel Tube For Power Plants

Inconel 625 Tubes Sans Soudure for Heat Exchanger Nickel and Nickel alloy referred to the alloy’s...
Quality Anticorrosion 1mm Inconel 718 Seamless Tube factory

Anticorrosion 1mm Inconel 718 Seamless Tube

Inconel 718 Nickel Alloy tube 1mm Alloy 718 has excellent corrosion resistance to many media....
Quality High Resistance ASTM B622 WT 0.50mm Inconel 601 Pipe factory

High Resistance ASTM B622 WT 0.50mm Inconel 601 Pipe

Inconel 600 718 825 Tubing Pipe Outer Diameter : 3.18mm-101.60mm Wall Thickness : 0.50mm-20.00mm...
Quality OD48.3mm 63% Ni  625 Alloy Inconel Gas Tube factory

OD48.3mm 63% Ni 625 Alloy Inconel Gas Tube

625 Exhaust Inconel Alloy Tube Pipe Inconel 600 (UNS N06600, DIN W. Nr. 2.4816) Inconel 601 (UNS...
Quality 8.47g/Cm3 72% Ni  20inch Inconel 600 Tubing factory

8.47g/Cm3 72% Ni 20inch Inconel 600 Tubing

Inconel Alloy 625 600 Pipe 20 inch Inconel 600 with high nickel content, is virtually immune to...

Structural Steel Pipe

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Quality S275 Structural Steel Tubes For Construction Project , U Channel Structural Steel Beams Q235B factory

S275 Structural Steel Tubes For Construction Project , U Channel Structural Steel Beams Q235B

Current table represents European standard U (UPN, UNP) channels, UPN steel profile (UPN beam),...
Quality DIN EN 10210-1 Structural Steel Pipe / Carbon Steel Hot Finished Seamless Tube factory

DIN EN 10210-1 Structural Steel Pipe / Carbon Steel Hot Finished Seamless Tube

DIN EN 10210-1 Hot finished structural hollow sections of non-alloy and fine grain steels DIN EN...
Quality 50mm Wall thickness Carbon Steel Tubes for General Structural Purposes factory

50mm Wall thickness Carbon Steel Tubes for General Structural Purposes

JIS G 3444 STK290,STK400 STK500 STK490 STK540 Carbon Steel Tubes for General Structural Purposes...