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AISI 4130 Pipes, Tubes, Pipe Fittings, Flanges, Round Bars Supplier in Zambia

SAE / AISI 4130 Pipe Fittings in Livingstone, UNS G41300 Pipes Distributor in Lusaka, ANSI B16.9 Pipe Fittings Supplier in Livingstone, ASTM A519 Gr 4130 minimum 75K yield strength seamless pipes Supplier in Ndola, ASTM A519 Grade 4130 Carbon Steel Pipe in Kitwe, AISI 4130 75K Drilling Pipes in Ndola, ASTM A519 Gr 4130 Seamless Pipes in Ndola, 75000 PSI yield Strength - 105K UTS Alloy Steel Pipe Stockist in Zambia, AISI 4130 Pipe in Kitwe, AISI 4130 BLRTJ Flanges in Chingola, AISI 4130 Drilling Pipes in Kitwe, AISI 4130 Seamless Pipes in Zambia, Alloy Steel 4130 Flanges in Zambia, AISI 4130 80K Pipe in Zambia

Ready Stock of ASTM A519 Grade 4130 Seamless Pipe in Chingola, ASTM A519 4130 Seamless Pipes Manufacturer in Zambia, AISI 4130 Pipe Fittings in Lusaka , Alloy Steel 4130 Pipe in Lusaka, AISI 4130 Drilling Pipes in Kitwe, Alloy Steel AISI 4130 Seamless Pipe Fittings in Zambia, AISI 4130 80K Seamless Pipes Stockist in Kitwe, AISI 4130 API 6A 10K RTJ Weld Neck Flange in Kabwe, AISI 4130 75K Seamless Pipes in Lusaka, 80000 PSI Yield Strength - 95K UTS Pipes Distributor in Zambia, AISI 4130 Alloy Steel Flanges Stockist in Zambia, AISI 4130 Alloy Steel Pipe in Zambia, AISI 4130 Socket Weld Flanges Stockist in Zambia, ASTM A519 Gr 4130 minimum 75K yield strength seamless pipes Manufacturer in Ndola

Kalikund Steel & Engg. Co. is a acclaimed fabricator and stockiest of 4130 Pipe Fittings & Flanges in Lusaka, Zambia. 4130 is a widely used common alloy steel. 4130 steel is chromium-molybdenum alloy steel with low carbon content. It has a density of 7.85 g/cm3 (0.284 lb. /in3) and is heat-treated for hardness.

It’s excellent welding steel that can be welded using any commercial process and can be machined in its standardized state. Applications for 4130 steel alloy include pressurized gas cylinders, firearm parts, and clutch components, all of which require high strength and precision while being light-weighted and machinable.


As AISI 4130 is a steel grade with great formability and ductility, it can be used to design a variety of AISI 4130 Fittings, including straight tees, reducing tees, long-radius elbows, 3R elbows, caps, and reducers. This low alloy steel, which has a nominal carbon content of 0.3 percent, a chromium content of 1%, and molybdenum content of 0.2 percent, is also generally used in petroleum projects.

This low alloy steel’s content is a through-hardening alloy with remarkable ductility in the annealed state. Since chromium and molybdenum are used as reinforcing factors in this low alloyed steel, the AISI 4130 Pipe Fittings & Flanges have good machinability, strength, fracture toughness, and long life.

Since these fittings have a low carbon content, they should be easy to weld. In reality, the AISI 4130 Buttweld Pipe Fittings and Flanges can be welded using any commercial shop methods due to its extraordinary welding characteristics. Furthermore, grade AISI 4130 can be machined easily in its normalized or tempered state.

For 4130 Pipe Fittings & Flanges, Kalikund Steel & Engg. Co. provides delivery conditions such as Annealed, Normalized, Stress Relieved, Quenched, and Tempered. We offer an extensive range of 4130 Pipes Fittings & Flanges. Kalikund Steel & Engg. Co has established long-term relationships with major international producers and suppliers. The material used to make these 4130 fittings is of the highest quality. We provide a high-quality AISI 4130 Fitting to our customers. Our product line is appreciated by customers around the country and is offered at the most affordable rates in the industry.

Chromoly 4130 Pipes, Tubes, Pipe Fittings, Flanges, Round Bars Specification in Zambia

Dimensions ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Pipe Fittings Form Elbow, Tee, Reducer, Union, Coupling, Cross, Cap, Plug Pipe Fittings.
Elbow Form Elbow, 45 Deg Elbow, 90 Deg Elbow, 180 Deg Elbow, Long Radius Elbow, Short Radius Elbow, LR Elbow, SR Elbow
Tees Form Equal Tee, Pipe Tee, Unequal Tee, Long Sweep Tee.
Reducer Form Butt weld Reducer, Concentric Reducer, Eccentric Reducer.
Pipe Caps Form End Caps, Pipe Caps, Pipe End Caps.
Cross Form Equal Cross, Unequal Cross, Reducing Cross.
Flanges Form Slip On Flanges, Weld Neck Flanges, Socket Weld Flanges, Blind Flanges, Long Weld Neck Flanges, Orifice Flanges.
Pipes Seamless Pipes
Size 1″, 2″, 3″,4″, 5′, 6″, 8″ and 3.5″ OD, 4″ OD, 4.5” OD, 5.5″ OD 3.5″ OD x 2.3″ ID, 4″ OD x 2.5″ ID, 4.5″ OD x 3″ ID, 5″ OD x 3″ ID, 5.5″ OD x 3″ ID
Round Bars Form Bright Bar, Hex Bar, Square Bar, Rectangular Bar, Flat Bars, Polished Bar, Threaded Bar.
Size 5 mm To 500 mm and as per client design
Pressure 7.5K, 10K, 15K, 22.5K and more as per client drawing and requirement.
Delivery Condition Annealed, Normalized, Stress Relieved, Quenched & Tempered.
Product Specification Level (PSL) PSL 1, PSL 2, PSL 3.
Supplementary Requirement NACE MR0175 / MR0103 ISO 3183 / NACE TM0284 YS – MIN 85,000, UTS – 1,10,000 WITHSTANDING 15,000 PRESSURE.
ANSI B16.9 UNS G41300 Pipes, Tubes, Pipe Fittings, Flanges, Round Bars Forms & Availability in Zambia

Seamless/ Welded 100% Radiography Tested

Products Size
ASTM A519 4130 Carbon Steel Pipe Stockist in Kabwe AISI 4130 Custom Pipes in Lusaka Sizes 1/2″ – 48″
AISI 4130 85K Custom Pipes in Livingstone 4130 Alloy Steel 80k Tubing Manufacturer in Kabwe
4130 AISI Thick Wall Tube Manufacturer in Zambia A519 4130 L80 Seamless Alloy Steel Tube Manufacturer in Livingstone
AISI 4130 Pipe Fittings Supplier in Ndola AISI 1.7218 45 Deg Long Radius Elbow Distributor in Kitwe
ASTM A519 4130 Reducing Tees Manufacturer in Zambia UNS G41300 Ecentric Reducers Distributor in Lusaka
ASME B16.9 AISI 4130 Straight Crosses Supplier in Chingola AISI 4130 End Caps Supplier in Zambia
AISI 1.7218 Type 6BX Welding Neck Flanges 10,000 PSI Manufacturer in Livingstone AISI 4130 API 6A 15K RTJ Weld Neck Flange Manufacturer in Ndola
AISI 4130 Bars in Livingstone AISI 4130 Type 6BX Blind Flanges 10,000 PSI Distributor in Zambia
4130 Steel Bar Stockist in Kitwe 4130 Steel Forging Hollow Bar in Zambia
Equivalent Grades AISI 4130 Pipes, Tubes, Pipe Fittings, Flanges, Round Bars in Zambia
STANDARD UNS WERKSTOFF NR. AFNOR EN JIS BS GOST
AISI 4130 G41300 1.7218 25CrMo4 JIS G4105 BS 970
Chemical Composition of Chromoly 4130 Pipes, Tubes, Pipe Fittings, Flanges, Round Bars in Zambia
Grade Ni C Mo Mn Si Fe Cu S P Cr
AISI 4130 0.50 max 0.28-0.33 0.15-0.25 0.40-0.60 0.15-0.35 97.3-98.22 0.025 MAX 0.035 MAX 0.80-1.10
Mechanical Properties of Chromoly 4130 Pipes, Tubes, Pipe Fittings, Flanges, Round Bars in Zambia
Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
7.85g/cm3 1432 C 460 MPa 560 MPa 21.50 %
Chromoly 4130 Production Range in Zambia

AISI 4130 Custom Pipes Supplier in Lusaka
AISI 4130 Seamless Pipes Distributor in Zambia
AISI 4130 Round Pipes Dealer in Ndola
Chromoly 4130 Pipe in Kabwe
AISI 4130 Pipe Manufacturer Stockist in Livingstone
ASTM A519 Gr 4130 80K Seamless Pipes Manufacturer in Chingola
Chrome Moly 4130 Pipe Stockist in Kitwe
SAE 4130 Custom Pipe Manufacturer in Kabwe
ASTM A519 4130 Pipes Stockist in Zambia
High Quality AISI 4130 Pipe Supplier in Kitwe

Grade 4130 Seamless Pipes Manufacturer in Kabwe
ASTM A519 Gr. 4130 Seamless Pipes Supplier in Kitwe
Alloy Steel ASTM A519 Grade 4130 Seamless Pipes Manufacturer in Ndola
UNS G41300 Pipes Distributor in Livingstone
ASTM A519 4130 Pipes Manufacturer in Chingola
ASTM A519 Gr 4130 Seamless Pipes Supplier in Livingstone
Grade 4130 Alloy Steel 75K Seamless Pipe Manufacturer in Lusaka
ASTM A519 Grade 4130 Seamless Pipes Manufacturer in Ndola
25crmo4 Seamless Pipes Manufacturer in Zambia
ASTM A519 Gr 4130 minimum 75K yield strength Seamless Pipes Dealer in Chingola

AISI 4130 85K Custom Pipes Supplier in Livingstone
AISI 4130 80K Pipe Manufacturer Manufacturer in Kitwe
Alloy Steel 4130 85K Pipe Manufacturer in Chingola
80000 PSI Yield Strength - 95K UTS Pipes Stockist in Lusaka
4130 75K Steel Pipe Stockist in Zambia
AISI 4130 80K Pipe Distributor in Ndola
Chrome Moly 4130 80K Pipe in Kitwe
SAE 4130 85K Pipe Custom Pipe Manufacturer in Livingstone
85000 PSI Yield Strength - 105K Ultimate Tensile Strength Pipe Dealer Zambia
SAE / AISI 4130 Pipe Supplier in Kabwe

Alloy Steel 4130 Tube Supplier in Zambia
AISI 4130 Custom Tubes Dealer in Livingstone
AISI 4130 L80 Seamless Tubes Supplier in Kitwe
AISI 4130 Drilling Tubes Supplier in Chingola
Alloy Steel 4130 Round Tubing Manufacturer in Lusaka
AISI 4130 Tubes Distributor in Ndola
4130 Alloy Steel 80k Tubing in Kabwe
3 inch AISI 4130 Tube Distributor in Livingstone
AISI 4130 75k Tubing in Kitwe
4130 AISI 2 inch Tube Manufacturer in Chingola

ASTM A519 4130 Tubing Manufacturer in Ndola
ASTM A519 4130 Seamless Tubing in Kabwe
ASTM A519 Grade 4130 Seamless Tubing Supplier in Lusaka
AISI 1.7218 Tubing Distributor in Kitwe
ASTM A519 Gr. 4130 Seamless Tubing Manufacturer in Livingstone
25crmo4 Seamless Tubing Supplier in Zambia
ASTM A519 Gr 4130 Seamless Tubing Dealer Manufacturer in Chingola
Chrome Moly 4130 Tubing in Kitwe
ASTM A519 4130 Seamless Tubing Exporter Stockist in Kabwe
4130 AISI Thick Wall Tube Supplier in Zambia

4130 L80 Chrome Moly Tubing Stockist in Kitwe
4130 Aircraft Tubing Supplier in Kabwe
AISI 4130 L80 Custom Tubes Stockist in Lusaka
Alloy Steel 4130 Tube Supplier in Zambia
AISI 4130 L80 Seamless Tubes Stockist in Livingstone
ASTM A519 4130 Mechanical Tubing in Kitwe
AISI 4130 L80 Alloy Steel Welded Outlet Tubes Manufacturer in Ndola
ASTM A519 4130 L80 Tubes in Kabwe
AISI 4130 L80 Buttweld Round Tube Dealer in Zambia 25crmo4 Tubes Stockist in Lusaka

Alloy Steel AISI 4130 Seamless Pipe Fittings Distributor in Ndola
AISI 4130 Buttweld Pipe Fittings Supplier in Kitwe
AISI 4130 Pipe Fittings Supplier in Livingstone
SAE / AISI 4130 Pipe Fittings Distributor in Lusaka
Alloy Steel AISI 4130 Fittings in Zambia
High Quality AISI 4130 Pipe Fittings Supplier in Chingola
4130 Seamless Fittings Supplier in Kabwe
ASME B16.9 AISI 4130 Straight Pipe Fittings Manufacturer in Kitwe
4130 High Pressure Weld Fittings Stockist in Lusaka
SAE 4130 Pipe Fittings in Livingstone

AISI 4130 Long Sweep 90 degree elbow Supplier in Kitwe
Chromoly 4130 90 Degree 3rd Double Backed Elbow Manufacturer in Ndola
ASTM A519 Grade 4130 45 Deg Short Radius Elbow Distributor in Livingstone
Chromoly 4130 90 Deg Long Radius Elbow Supplier in Kabwe
Chrome Moly 4130 90 Deg Long Radius Elbow Distributor in Chingola
ASTM A519 4130 45 Deg Long Radius Elbow Distributor in Lusaka
Chrome Moly 4130 90 Degree 3rd Double Backed Elbow Distributor in Zambia
AISI 1.7218 45 Deg Long Radius Elbow Exporter in Ndola
AISI 4130 Long Sweep 90 degree elbow Distributor in Kabwe
AISI 4130 90 Deg Short Radius Elbow in Chingola

UNS G41300 Long Sweep Tees in Kitwe
AISI 4130 Tees Manufacturer in Kabwe
Chromoly 4130 Tees Dealer in Ndola
Chrome Moly 4130 Long Sweep Full Flow Tees Distributor in Livingstone
AISI 1.7218 Reducing Tees Distributor in Zambia
ASTM A519 Grade 4130 Long Sweep Full Flow Tees Stockist in Lusaka
AISI 4130 Tees Stockist in Chingola
AISI 1.7218 Long Sweep Full Flow Tees in Lusaka
Chrome Moly 4130 Reducing Tees Supplier in Livingstone
AISI 4130 Long Sweep Full Flow Tees Stockist in Zambia

ASTM A519 4130 Concentric Reducers Manufacturer in Lusaka
AISI 4130 Concentric Reducers Stockist in Livingstone
Chrome Moly 4130 Reducer Distributor in Kabwe
AISI 1.7218 Reducer Stockist in Kitwe
AISI 4130 Reducer Stockist in Livingstone
UNS G41300 Reducer Supplier in Chingola
UNS G41300 Ecentric Reducers in Zambia
Chrome Moly 4130 Ecentric Reducers Supplier in Zambia
ASTM A519 4130 Reducer Manufacturer in Ndola
ASTM A519 4130 Reducer in Kabwe

High Pressure 4130 Seamless Pipe Cap Manufacturer in Ndola
Alloy Steel 4130 End Cap Distributor in Lusaka
Chrome Moly 4130 Pipe Cap Supplier in Kabwe
Alloy Steel 4130 Pipe Caps Stockist in Chingola
AISI 4130 End Caps Distributor in Zambia
AISI 4130 Eccentric Reducer Exporter in Kitwe
AISI 4130 Buttweld Reducer Dealer Supplier in Livingstone
AISI 4130 Eccentric Reducer Supplier in Chingola
Heavy Wall 4130 Seamless Eccentric Reducer Supplier in Kabwe
ASME B16.9 AISI 4130 Reducer Manufacturer in Lusaka

AISI 4130 Cross Supplier in Livingstone
Alloy Steel 4130 Cross Distributor in Zambia
AISI 4130 Steel Cross Stockist in Kitwe
ANSI B16.9 AISI 4130 Equal Cross Dealer in Kabwe
High Pressure 4130 Seamless Cross Distributor in Chingola
AISI 4130 Buttweld Unequal Cross Dealer Supplier in Kitwe
AISI 4130 Cross Stockist in Lusaka
AISI 4130 ANSI B16.9 Equal Cross Distributor in Ndola
ASME B16.9 AISI 4130 Straight Crosses Stockist in Chingola
High Quality AISI 4130 Cross in Lusaka

AISI 4130 Welding Neck Flanges Distributor in Zambia
Alloy Steel 4130 Flanges Distributor in Zambia
AISI 4130 WNRTJ Flanges in Zambia
AISI 4130 - Type 6B Welding Neck Flanges 5000 PSI Supplier in Zambia
AISI 4130 API 6A 15K RTJ Weld Neck Flange Manufacturer in Zambia
AISI 4130 Flanges Manufacturer in Zambia
AISI 4130 Blind Flanges Dealer Distributor in Zambia
25crmo4 Flanges Manufacturer in Zambia
ASME B16.5 AISI 4130 Flanges Manufacturer in Zambia
AISI 4130 - Type 6BX Blind Flanges 15000 PSI Exporter in Zambia

ASTM A519 4130 Type 6B Welding Neck Flanges 5,000 PSI in Livingstone
AISI 1.7218 Type 6BX Welding Neck Flanges 15,000 PSI Manufacturer in Kitwe
AISI 4130 Type 6BX Welding Neck Flanges 15,000 PSI Stockist in Chingola
AISI 4130 Type 6BX Welding Neck Flanges 10,000 PSI Manufacturer in Livingstone
UNS G41300 Type 6BX Welding Neck Flanges 15,000 PSI in Ndola
AISI 4130 Type 6BX Welding Neck Flanges 10,000 PSI in Lusaka
UNS G41300 Type 6B Welding Neck Flanges 5,000 PSI Manufacturer in Zambia
Chrome Moly 4130 Type 6BX Welding Neck Flanges 10,000 PSI Supplier in Kabwe
AISI 4130 Type 6B Welding Neck Flanges 5,000 PSI in Livingstone
Chrome Moly 4130 Type 6BX Welding Neck Flanges 15,000 PSI in Kitwe

Chromoly 4130 Type 6BX Blind Flanges 10,000 PSI Stockist in Lusaka
UNS G41300 Type 6BX Blind Flanges 10,000 PSI Supplier in Kabwe
AISI 4130 Type 6BX Blind Flanges 10,000 PSI Supplier in Kitwe
UNS G41300 Type 6BX Blind Flanges 10,000 PSI Supplier in Livingstone
AISI 4130 Type 6BX Blind Flange 15,000 PSI Supplier in Zambia
Chromoly 4130 Type 6BX Blind Flanges 10,000 PSI in Ndola
UNS G41300 Type 6BX Blind Flange 15,000 PSI Stockist in Zambia
UNS G41300 Type 6BX Blind Flange 15,000 PSI Supplier in Livingstone
ASTM A519 Grade 4130 Type 6BX Blind Flange 15,000 PSI Stockist in Kabwe
UNS G41300 Type 6BX Blind Flanges 10,000 PSI Distributor in Chingola

ASTM A519 4130 Round Bars Supplier in Chingola
Chromoly 4130 Hollow Bars Manufacturer in Kitwe
AISI 1.7218 Round Bars Distributor in Ndola
Chrome Moly 4130 Bars Exporter in Zambia
Chromoly 4130 Round Bars in Livingstone
Chrome Moly 4130 Round Bars in Lusaka
AISI 1.7218 Bar in Kitwe
Chromoly 4130 Bar in Kabwe
Chrome Moly 4130 Hollow Bars Distributor in Lusaka
AISI 4130 Bar Stockist in Zambia

AISI 4130 Square Bar Stockist in Ndola
Alloy Steel 4130 Round Bar Distributor in Lusaka
4130 Steel Forging Bar Stockist in Ndola
AISI 4130 Round Bar Distributor in Zambia
4130 Steel Bar in Kitwe
25crmo4 Round Bar Exporter in Kabwe
AISI 4130 Alloy Steel Bright Bar Stockist in Chingola
AISI 4130 Round Bar Exporter Manufacturer in Livingstone
AISI / SAE 4130 Round Bars Distributor in Lusaka
AISI 4130 Forged Round Bars Stockist in Zambia

AISI 4130 Hollow Bar Manufacturer in Zambia
AISI 4130 Forging Hollow Bar Supplier in Livingstone
Alloy Steel 4130 Hollow Bar Manufacturer in Ndola
4130 Steel Hollow Bar Supplier in Kabwe
UNS G41300 4130 Hollow Bar Stockist in Chingola
AISI 4130 Hollow Bar Exporter Distributor in Kitwe
AISI 708A25 Hollow Bar in Lusaka
AISI 1.7218 Hollow Bar Supplier in Zambia
AISI 4130 Hollow Bar Dealer in Kitwe
High Quality AISI 4130 Hollow Bar Manufacturer in Kabwe

Price List of ANSI B16.9 ASTM A519 4130 Pipes, Tubes, Pipe Fittings, Flanges, Round Bars in Zambia
Prices for ASTM A519 Grade 4130 Pipes, Tubes, Pipe Fittings, Flanges, Round Bars Products are very affordable. Please click on the request a quote button or click here to request the updated price list and ready stock information along with your requirement. KALIKUND STEEL & ENGG. CO. maintains a stock of all standard items and can supply them at the best price AISI 1.7218 Pipes, Tubes, Pipe Fittings, Flanges, Round Bars, Buttweld Elbow, Reducer, Tee, Cross, Stub End, Pipe Bend, Seamless Pipe Fittings, Weldable, Welded Pipe Fittings etc.
Chromoly 4130 Pipes, Tubes, Pipe Fittings, Flanges, Round Bars Ready Stock in Zambia
AISI 4130 – Type 6BX Welding Neck Flanges 10000 PSI in Livingstone AISI 4130 Socket Weld Flanges Distributor in Kabwe
AISI 4130 BLRTJ Flanges Dealer in Chingola. AISI 4130 Alloy Steel Flanges Stockist in Zambia
AISI 4130 API 6A 15K RTJ Weld Neck Flange in Ndola AISI 4130 ANSI B16.5 Orifice Flanges Stockist in Zambia
AISI 4130 75K Seamless Pipes in Lusaka AISI 4130 Alloy Steel Pipe Manufacturer in Kabwe
AISI 4130 Round Pipes in Kitwe Chromoly 4130 Pipe in Livingstone
4130 Steel Pipe in Kitwe AISI 4130 Pipe Supplier in Zambia
Grade 4130 Seamless Pipes in Chingola ASTM A519 Gr. 4130 Seamless Pipes Supplier in Kabwe
ASTM A519 4130 Seamless Pipes Stockist in Kabwe UNS G41300 Pipes Stockist in Lusaka
ASTM A519 Grade 4130 Seamless Pipe in Chingola ASTM A519 Gr 4130 Seamless Pipes in Kitwe
AISI 4130 75K Drilling Pipes in Ndola AISI 4130 80K Pipe Stockist in Zambia
Alloy Steel 4130 85K Pipe in Livingstone 75000 PSI yield Strength – 105K UTS Alloy Steel Pipe in Zambia
AISI 4130 80K Seamless Pipes Stockist in Chingola ASTM A519 Gr 4130 minimum 75K yield strength seamless pipes Distributor in Kitwe
Alloy Steel AISI 4130 Seamless Pipe Fittings Manufacturer in Zambia AISI 4130 Buttweld Pipe Fittings Manufacturer in Lusaka
Alloy Steel 4130 Pipe Fittings in Ndola SAE / AISI 4130 Pipe Fittings Dealer in Lusaka
AISI 4130 Pipe Fittings Stockist in Livingstone 4130 Aircraft Tubing Supplier in Zambia
Alloy Steel 4130 Tube in Kabwe 4130 Chrome Moly Tubing Stockist in Lusaka
AISI 4130 L80 Seamless Tubes in Kitwe Alloy Steel 4130 Round Tubing Stockist in Kabwe
AISI 4130 Seamless Tubes in Kitwe ASTM A519 4130 Tubing Distributor in Zambia
UNS G41300 Tubing in Lusaka ASTM A519 4130 Seamless Tubing Supplier in Livingstone
Grade 4130 Seamless Tubes Stockist in Ndola ASTM A519 Gr. 4130 Seamless Tubing in Chingola
ASTM A519 Gr 4130 Seamless Tubing Stockist in Kabwe 4130 L80 Chrome Moly Tubing in Lusaka
4130 Aircraft Tubing in Zambia AISI 4130 L80 Seamless Tubes in Chingola
Alloy Steel 4130 Tube in Ndola Alloy Steel 4130 Round Tubing Supplier in Zambia