Wenzhou Kaixin Kaixin Metal Co., Ltd
ASTM A269 je standardní specifikace pro plynulé a svařované hadičky z nerezové oceli pro obecnou službu. Pokrývá řadu velikostí a stupňů trubek, včetně těch z austenitické nerezové oceli. Tábička je určena pro obecnou službu odolávající korozi a nízkou nebo vysokou teplotu. Mezi běžné aplikace této plynulé trubice patří:
1. Chemické zpracování
2. Farmaceutická výroba
3. Výroba potravin a nápojů
4. Aerospace
5. Ropný a plynárenský průmysl
6. Výměníky tepla
7. Instrumentační systémy
The ASTM A269 bezproblémová trubice z nerezové oceli je známý pro svůj vysoce kvalitní a výjimečný výkon, učinit z něj oblíbenou volbu pro různá průmyslová odvětví. Bezproblémová konstrukce těchto zkumavek je vysoce odolná vůči korozi a otěru. Trubky jsou také schopny odolávat vysokým teplotám a tlakům, tak jsou ideální pro použití v extrémních prostředích.
Navíc, bezproblémová konstrukce ASTM A269 trubka z nerezové oceli usnadňuje čištění a údržbu. To je zvláště důležité pro průmyslová odvětví zapojená do výroby potravin a léčiv, kde je čistota nanejvýš důležitá.
Celkově, The ASTM A269 z nerezové oceli bezproblémová trubice je všestranná a spolehlivá možnost pro různá průmyslová odvětví, která potřebují vysoce kvalitní řešení pro hadičky.
1. Odolnost proti korozi: ASTM A269 Nerezová ocel bezproblémové trubice jsou vysoce odolné vůči korozi, which makes them ideal for use in harsh environments.
2. Durability: Stainless steel is an incredibly durable material, which means that these seamless tubes can last for a very long time without any degradation in quality.
3. Versatility: Nerez is a versatile material that can be used in a wide range of applications. ASTM A269 seamless tubes are no exception, and they can be used in everything from pharmaceuticals to petrochemicals.
4. High strength: Because ASTM A269 Nerezová ocel bezproblémové trubice are made from high-quality stainless steel, they have a high strength-to-weight ratio. This means that they can withstand high stresses without deforming or breaking.
5. Superior finish: ASTM A269 z nerezové oceli bezproblémová trubices have a superior surface finish, which makes them ideal for use in applications where appearance matters. They can be easily polished or buffed to a mirror-like finish.
6. Easy maintenance: Vlastnosti rezistentní na korozi ASTM A269 Nerezová ocel bezproblémové trubice znamenají, že vyžadují velmi malou údržbu. Díky tomu je nákladově efektivní možnost pro aplikace, kde je pravidelná údržba obtížná nebo nepraktická.
7. Dostupnost: ASTM A269 bezproblémové trubice jsou snadno dostupné v různých velikostech a známkách, usnadňující je zdroj pro jakoukoli aplikaci.
Obsah A269 z nerezové oceli bezproblémové trubice
- Specifikace bezproblémové trubice z nerezové oceli
- ASTM A269 Vlastnosti plynulé trubice
- Nerezová ocel bezproblémová trubice ASTM A269 Trubeing Velikosti
- ASTM A269 tolerance ocelových trubek
- ASTM A269 Nerezová trubková trubka trubice hmotnosti trubice
- ASTM A269 STARNLES OCELNÍ TABKOVÉ CHEMICKÉ SLOŽENÍ
- Trubice z nerezové oceli za cenu ASTM A269
Druhy ASTM A269 z nerezové oceli polské trubice
| ASTM A269 Standardní plynulá trubice | Elektropolizová trubice ASTM A269 |
| Instrumentační trubice A269 | ASME SA269 Stopená trubka za studena |
| Trubka výměny tepla SA269 | ASTM A269 Pošla z nerezové oceli |
| Svařovaná ASTM A269 nerezová trubice | ASTM A269 Ocelová dekorativní trubice |
| ASTM A269 SS EFW trubice | A269 Trubka z nerezové oceli |
| A269 nerezová kapilární trubice | A269 ocelová trubice ERW |
| A269 SS Hot válcovaná trubice | A269 Standardní trubice nakreslená za studena |
| ASTM ASTM A269 Santiary Tube | Kulatá trubice z nerezové ASTM A269 |
| Ocelová trubice ASTM A269 | Trubička SS ASTM A269 |
ASTM A269 Standardní specifikace plynulé trubice
| Specifikace | ASTM A-249, A-269, A-270, A-554, A-688, A-268, A-778, Z 17456, Z 17455, 17457, Z 17458 [Třída 1] & Jeho ekvivalentní ASME, Z & Standard. |
| ASTM A269 Grades Electropolish Tube | 202, 304, 304L, 304H, 304Ln, 316Ln, 309S, 310S, 316, 316L, 316H, 316Z, 317L, 321, 321H, 347, 347H, 904L, My 254, SLITINA 254, 6Mo, 6Moly, UNS S31254 atd. |
| Typ přístrojové trubice A269 | Bezproblémový / Svařované / Studené losování / AKR / EFW / Horký povrch / Chladný povrch |
| ASME SA269 STUDENÉ VALENÉ SKVĚLÉ TUBKOVÉ ZÁVĚRY | Bezproblémový – 6 Mm z toho 114.3 Mm od Svařované / AKR- 10 Mm do 114.3 Mm od |
| SA269 Tloušťka stěny stěny SA269 | 0.8 Mm do 4 Tloušťka stěny mm |
| ASTM A269 Pošla z nerezové oceli Délka | 01 Měřič do 12.5 Metry, Jediná náhodná délka, Dvojitá náhodná délka a přizpůsobení velikosti. |
| Svařované ASTM A269 nerezové trubice konce | Prosté konce, Zkosené konce |
| ASTM A269 Steel Decorative Tube Coating | Mechanical Polish, Electropolish, Satin Finish, Passivated |
| ASTM A269 SS EFW Tube Other Testing | Product Analysis, Radiographic Examination, Transverse Tension, Flattening, Etching, Stabilizing Heat Treatment, Intergranular Corrosion, Grain Size, NACE 0175, Dual Grade, Weld Decay, Magnetic Particle Detection, PWHT (POST WELD HEAT TREATMENT), Flare, Bend, Tvrdost, Tensile Test etc |
| A269 Trubka z nerezové oceli Dimenze | All Tube are Manufactured and Tested / Inspected to the Relevant standards including ASTM and ASME |
| A269 Stainless Capillary Tube Value Added Services | Draw / Expansion / Tepelné zpracování / Annealed / Machining / Tryskání písku / Shot Blasting / Jasně žíhané |
| A269 Steel ERW Tube Packaging | Loose / Bundle / Plastic Cloth Wraps / Wooden Pallet / Wooden Box / Plastic End Caps / Beveled Protector |
| A269 SS Hot Rolled Tube Material Test Certificate | Manufacturer Test Certification As Per EN 10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like TUV, DNV, SGS, LLOYDS, ABS ETC |
ASTM A269 Standardní vlastnosti plynulé trubice
| Mechanické vlastnosti | 304 | 304L | 316 | 316L |
|---|---|---|---|---|
| Tensile Strength Minimum ksi (MPa) | 75 (515) | 70 (485) | 75 (515) | 70 (485) |
| Yield Strength Minimum ksi (MPa) | 30 (205) | 25 (170) | 30 (205) | 25 (170) |
| Elongation Min | 35% | 35 | 35% | 35 |
| Rockwell Hardness Number, maximum | B90 | B90 | B90 | B90 |
| Materiál | Heat | Temperure | Tensile Strength | Yield Strength | Prodloužení %, Min |
| Treatment | Min. | Ksi (MPa), Min. | Ksi (MPa), Min. | ||
| º F(º C) | |||||
| ASTM A269 304 | Solution | 1900 (1040) | 75(515) | 30(205) | 35 |
| ASTM A269 304L | Solution | 1900 (1040) | 70(485) | 25(170) | 35 |
| ASTM A269 316 | Solution | 1900(1040) | 75(515) | 30(205) | 35 |
| ASTM A269 316L | Solution | 1900(1040) | 70(485) | 25(170) | 35 |
ASTM A269 Nerezová ocel bezproblémové velikosti trubic
|
Velikost
Z, Palce |
BW
Ga. |
Zeď
Dec-In. |
ID
|
Hmotnost
Lbs/Ft. |
|
| ASTM A269 Standardní plynulá trubice |
1/8
|
22
|
0.028
|
0.069
|
0.0290
|
|
20
|
0.035
|
0.055
|
0.0336
|
||
| ASME SA269 Tubing |
3/16
|
22
|
0.028
|
0.131
|
0.0478
|
| Elektropolizová trubice ASTM A269 |
1/4
|
25
|
0.020
|
0.210
|
0.0491
|
|
22
|
0.028
|
0.194
|
0.0664
|
||
|
21
|
0.032
|
0.187
|
0.0745
|
||
|
20
|
0.035
|
0.180
|
0.0804
|
||
|
18
|
0.049
|
0.152
|
0.1052
|
||
|
16
|
0.065
|
0.120
|
0.1284
|
||
| Instrumentační trubice A269 |
5/16
|
20
|
0.035
|
0.242
|
0.1039
|
|
18
|
0.049
|
0.214
|
0.1382
|
||
|
16
|
0.065
|
0.182
|
0.1722
|
||
| ASME SA269 Stopená trubka za studena |
3/8
|
22
|
0.028
|
0.319
|
0.1038
|
|
20
|
0.035
|
0.305
|
0.1271
|
||
|
18
|
0.049
|
0.277
|
0.1706
|
||
|
16
|
0.065
|
0.245
|
0.2152
|
||
| ASME SA269 Tubing |
7/16
|
18
|
0.049
|
0.340
|
0.2036
|
| Trubka výměny tepla SA269 |
1/2
|
25
|
0.020
|
0.460
|
0.1025
|
|
20
|
0.035
|
0.430
|
0.1738
|
||
|
18
|
0.049
|
0.402
|
0.2360
|
||
|
16
|
0.065
|
0.370
|
0.3020
|
||
| ASTM A269 Pošla z nerezové oceli |
5/8
|
20
|
0.035
|
0.555
|
0.2205
|
|
18
|
0.049
|
0.527
|
0.3014
|
||
|
16
|
0.065
|
0.495
|
0.3888
|
||
| Svařovaná ASTM A269 nerezová trubice |
3/4
|
20
|
0.035
|
0.680
|
0.2673
|
|
18
|
0.049
|
0.652
|
0.3668
|
||
|
16
|
0.065
|
0.620
|
0.4755
|
||
|
14
|
0.083
|
0.584
|
0.5913
|
||
| ASTM A269 Steel Decorative Tube |
7/8
|
18
|
0.049
|
0.777
|
0.4323
|
|
16
|
0.065
|
0.745
|
0.5623
|
||
|
11
|
0.120
|
0.635
|
0.9676
|
||
| ASTM A269 SS EFW trubice |
1
|
20
|
0.035
|
0.930
|
0.3607
|
|
18
|
0.049
|
0.902
|
0.4977
|
||
|
16
|
0.065
|
0.870
|
0.6491
|
||
|
14
|
0.083
|
0.834
|
0.8129
|
||
|
11
|
0.120
|
0.760
|
1.1278
|
||
| ASME SA269 Tubing |
1-1/4
|
11
|
0.120
|
1.010
|
1.4480
|
ASTM A269 z nerezové oceli bezproblémová trubice Instrumentation Tube Weight Chart
| OD palce | Ave. Palce na zeď | D/t Ratio | ID inches | Tube Cross Sectional Area (in2) | Internal Area (in2) |
|---|---|---|---|---|---|
| 0.250 | 0.020 | 12.50 | 0.210 | 0.0145 | 0.0346 |
| 0.250 | 0.028 | 8.93 | 0.194 | 0.0195 | 0.0296 |
| 0.250 | 0.035 | 7.14 | 0.180 | 0.0236 | 0.0254 |
| 0.250 | 0.049 | 5.10 | 0.152 | 0.0309 | 0.0181 |
| 0.250 | 0.065 | 3.85 | 0.120 | 0.0378 | 0.0113 |
| 0.375 | 0.020 | 18.75 | 0.335 | 0.0223 | 0.0881 |
| 0.375 | 0.028 | 13.39 | 0.319 | 0.0305 | 0.0799 |
| 0.375 | 0.035 | 10.71 | 0.305 | 0.0374 | 0.0731 |
| 0.375 | 0.049 | 7.65 | 0.277 | 0.0502 | 0.0603 |
| 0.375 | 0.065 | 5.77 | 0.245 | 0.0633 | 0.0471 |
| 0.500 | 0.020 | 25.00 | 0.460 | 0.0302 | 0.1662 |
| 0.500 | 0.028 | 17.86 | 0.444 | 0.0415 | 0.1548 |
| 0.500 | 0.035 | 14.29 | 0.430 | 0.0511 | 0.1452 |
| 0.500 | 0.049 | 10.20 | 0.402 | 0.0694 | 0.1269 |
| 0.500 | 0.065 | 7.69 | 0.370 | 0.0888 | 0.1075 |
| 0.500 | 0.083 | 6.02 | 0.334 | 0.1087 | 0.0876 |
| 0.625 | 0.020 | 31.25 | 0.585 | 0.0380 | 0.2688 |
| 0.625 | 0.028 | 22.32 | 0.569 | 0.0525 | 0.2543 |
| 0.625 | 0.035 | 17.86 | 0.555 | 0.0649 | 0.2419 |
| 0.625 | 0.049 | 12.76 | 0.527 | 0.0887 | 0.2181 |
| 0.625 | 0.065 | 9.62 | 0.495 | 0.1144 | 0.1924 |
| 0.625 | 0.083 | 7.53 | 0.459 | 0.1413 | 0.1655 |
| 0.625 | 0.095 | 6.58 | 0.435 | 0.1582 | 0.1486 |
| 0.625 | 0.109 | 5.73 | 0.407 | 0.1767 | 0.1301 |
| 0.750 | 0.028 | 26.79 | 0.694 | 0.0635 | 0.3783 |
| 0.750 | 0.035 | 21.43 | 0.680 | 0.0786 | 0.3632 |
| 0.750 | 0.049 | 15.31 | 0.652 | 0.1079 | 0.3339 |
| 0.750 | 0.065 | 11.54 | 0.620 | 0.1399 | 0.3019 |
| 0.750 | 0.083 | 9.04 | 0.584 | 0.1739 | 0.2679 |
| 0.750 | 0.095 | 7.89 | 0.560 | 0.1955 | 0.2463 |
| 0.750 | 0.109 | 6.88 | 0.532 | 0.2195 | 0.2223 |
| 0.750 | 0.120 | 6.25 | 0.510 | 0.2375 | 0.2043 |
| 0.875 | 0.020 | 43.75 | 0.835 | 0.0537 | 0.5476 |
| 0.875 | 0.028 | 31.25 | 0.819 | 0.0745 | 0.5268 |
| 0.875 | 0.035 | 25.00 | 0.805 | 0.0924 | 0.5090 |
| 0.875 | 0.049 | 17.86 | 0.777 | 0.1272 | 0.4742 |
| 0.875 | 0.065 | 13.46 | 0.745 | 0.1654 | 0.4359 |
| 0.875 | 0.083 | 10.54 | 0.709 | 0.2065 | 0.3948 |
| 0.875 | 0.095 | 9.21 | 0.685 | 0.2328 | 0.3685 |
| 0.875 | 0.109 | 8.03 | 0.657 | 0.2623 | 0.3390 |
| 0.875 | 0.120 | 7.29 | 0.635 | 0.2846 | 0.316L7 |
| 1.000 | 0.028 | 35.71 | 0.944 | 0.0855 | 0.6999 |
| 1.000 | 0.035 | 28.57 | 0.930 | 0.1061 | 0.6793 |
| 1.000 | 0.049 | 20.41 | 0.902 | 0.1464 | 0.6390 |
| 1.000 | 0.065 | 15.38 | 0.870 | 0.1909 | 0.5945 |
| 1.000 | 0.083 | 12.05 | 0.834 | 0.2391 | 0.5463 |
| 1.000 | 0.095 | 10.53 | 0.810 | 0.2701 | 0.5153 |
| 1.000 | 0.109 | 9.17 | 0.782 | 0.3051 | 0.4803 |
| 1.000 | 0.120 | 8.33 | 0.760 | 0.3318 | 0.4536 |
| 1.000 | 0.134 | 7.46 | 0.732 | 0.3646 | 0.4208 |
| 1.250 | 0.035 | 35.71 | 1.180 | 0.1336 | 1.0936 |
| 1.250 | 0.049 | 25.51 | 1.152 | 0.1849 | 1.0423 |
| 1.250 | 0.065 | 19.23 | 1.120 | 0.2420 | 0.9852 |
| 1.250 | 0.083 | 15.06 | 1.084 | 0.316L3 | 0.9229 |
| 1.250 | 0.095 | 13.16 | 1.060 | 0.3447 | 0.8825 |
| 1.250 | 0.109 | 11.47 | 1.032 | 0.3907 | 0.8365 |
| 1.250 | 0.120 | 10.42 | 1.010 | 0.4260 | 0.8012 |
| 1.250 | 0.134 | 9.33 | 0.982 | 0.4698 | 0.7574 |
| 1.500 | 0.035 | 42.86 | 1.430 | 0.1611 | 1.6061 |
| 1.500 | 0.049 | 30.61 | 1.402 | 0.2234 | 1.5438 |
| 1.500 | 0.065 | 23.08 | 1.370 | 0.2930 | 1.4741 |
| 1.500 | 0.083 | 18.07 | 1.334 | 0.3695 | 1.3977 |
| 1.500 | 0.095 | 15.79 | 1.310 | 0.4193 | 1.3478 |
| 1.500 | 0.109 | 13.76 | 1.282 | 0.4763 | 1.2908 |
| 1.500 | 0.120 | 12.50 | 1.260 | 0.5202 | 1.2469 |
| 1.500 | 0.134 | 11.19 | 1.232 | 0.5750 | 1.1921 |
| 1.500 | 0.148 | 10.14 | 1.204 | 0.6286 | 1.1385 |
| 1.750 | 0.035 | 50.00 | 1.680 | 0.1886 | 2.2167 |
| 1.750 | 0.049 | 40.82 | 1.902 | 0.3003 | 2.8413 |
| 1.750 | 0.065 | 26.92 | 1.620 | 0.3441 | 2.0612 |
| 1.750 | 0.083 | 21.08 | 1.584 | 0.4347 | 1.9706 |
| 1.750 | 0.095 | 18.42 | 1.560 | 0.4939 | 1.9113 |
| 1.750 | 0.109 | 16.06 | 1.532 | 0.5619 | 1.8433 |
| 1.750 | 0.120 | 14.58 | 1.510 | 0.6145 | 1.7908 |
| 1.750 | 0.134 | 13.06 | 1.482 | 0.6803 | 1.7250 |
| 1.750 | 0.148 | 11.82 | 1.454 | 0.7449 | 1.6604 |
| 1.750 | 0.165 | 10.61 | 1.420 | 0.8216 | 1.5837 |
| 2.000 | 0.035 | 57.14 | 1.930 | 0.2161 | 2.9255 |
| 2.000 | 0.049 | 40.82 | 1.902 | 0.3003 | 2.8413 |
| 2.000 | 0.065 | 30.77 | 1.870 | 0.3951 | 2.7465 |
| 2.000 | 0.083 | 24.10 | 1.834 | 0.4999 | 2.6417 |
| 2.000 | 0.095 | 21.05 | 1.810 | 0.5685 | 2.5730 |
| 2.000 | 0.109 | 18.35 | 1.782 | 0.6475 | 2.4941 |
| 2.000 | 0.120 | 16.67 | 1.760 | 0.7087 | 2.4328 |
| 2.000 | 0.134 | 14.93 | 1.732 | 0.7855 | 2.3561 |
| 2.000 | 0.148 | 13.51 | 1.704 | 0.8611 | 2.2805 |
| 2.000 | 0.165 | 12.12 | 1.670 | 0.9512 | 2.1904 |
ASTM A269 tolerance ocelových trubek
Trubka tolerance průměru ASTM A269
| NPS | ASTM A269 Tube OD Tolerance | |||
| + | – | |||
| palec | mm | palec | mm | |
| 1/8~ 1 1 /2 > 1 1 /2~ 4 > 4~ 8 > 8~ 18 > 18~ 26 > 26~ 34 > 34~ 48 |
1/64(0.015) 1/32(0.031) 1/16(0.062) 3/32(0.093) 1/8(0.125) 5/32(0.156) 3/16(0.187) |
0.4 0.8 1.6 2.4 3.2 4.0 4.8 |
1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) |
0.8 0.8 0.8 0.8 0.8 0.8 0.8 |
Tolerance tloušťky stěny ASTM A269 Ocelová trubice
| NPS | ASTM A269 Tube Tolerance, % | |
| + | – | |
| 1/8-2 1 /2 | 20.0 | 12.5 |
| 3~ 18, t/d < 5% | 22.5 | 12.5 |
| 3~ 18, t/d> 5% | 15.0 | 12.5 |
| ≥ 20, svařované | 17.5 | 12.5 |
| ≥ 20, bezproblémový, t/d < 5% | 22.5 | 12.5 |
| ≥ 20, bezproblémový, t/d> 5% | 15.0 | 12.5 |
ASTM A269 Stainles Ocelová trubice Chemické složení
| 304 | 304L | 316 | 316L | |
| Carbon, Max, % | 0.08 | 0.035* | 0.08 | 0.035* |
| Manganese, Max, % | 2 | 2 | 2 | 2 |
| Phosphorous, Max, % | 0.045 | 0.045 | 0.045 | 0.045 |
| Sulfur, Max, % | 0.03 | 0.03 | 0.03 | 0.03 |
| Silicon, Max, % | 1 | 1 | 1 | 1 |
| Chromium, % | 18.0 – 20.0 | 18.0 – 20.0 | 16.0 – 18.0 | 16.0 – 18.0 |
| Nikl, % | 8.0 – 11.0 | 8.0 – 12.0 | 10.0 – 14.0 | 10.0 – 14.0 |
| Molybdenum, % | 0 | 0 | 2.00 – 3.00 | 2.00 – 3.00 |
| EN-standard | EN-standard | SAE grade | NÁS |
| Steel no. k.h.s DIN | Steel name | ||
| 1.4408 | G-X 6 CrNiMo 18-10 | 316 | S31600 |
| 1.4512 | X6CrTi12 | 409 | S40900 |
| 410 | S41000 | ||
| 1.431 | X10CrNi18-8 | 301 | S30100 |
| 1.4318 | X2CrNiN18-7 | 301Ln | |
| 1.4307 | X2CrNi18-9 | 304L | S3043 |
| 1.4306 | X2CrNi19-11 | 304L | S30403 |
| 1.4311 | X2CrNiN18-10 | 304Ln | S30453 |
| 1.4301 | X5CrNi18-10 | 304 | S30400 |
| 1.4948 | X6CrNi18-11 | 304H | S30409 |
| 1.4303 | X5CrNi18-12 | 305 | S30500 |
| X5CrNi30-9 | 312 | ||
| 1.4841 | X22CrNi2520 | 310 | S31000 |
| 1.4845 | X 5 CrNi 2520 | 310S | S31008 |
| 1.4541 | X6CrNiTi18-10 | 321 | S32100 |
| 1.4878 | X12CrNiTi18-9 | 321H | S32109 |
| 1.4404 | X2CrNiMo17-12-2 | 316L | S31603 |
| 1.4401 | X5CrNiMo17-12-2 | 316 | S31600 |
| 1.4406 | X2CrNiMoN17-12-2 | 316Ln | S31653 |
| 1.4432 | X2CrNiMo17-12-3 | 316L | S31603 |
| 1.4435 | X2CrNiMo18-14-3 | 316L | S31603 |
| 1.4436 | X3CrNiMo17-13-3 | 316 | S31600 |
| 1.4571 | X6CrNiMoTi17-12-2 | 316Z | S31635 |
| 1.4429 | X2CrNiMoN17-13-3 | 316Ln | S31653 |
| 1.4438 | X2CrNiMo18-15-4 | 317L | S31703 |
| 1.4362 | X2CrNi23-4 | 2304 | S32304 |
| 1.4462 | X2CrNiMoN22-5-3 | 2205 | S31803/S32205 |
| 1.4501 | X2CrNiMoCuWN25-7-4 | J405 | S32760 |
| 1.4539 | X1NiCrMoCu25-20-5 | 904L | N08904 |
| 1.4529 | X1NiCrMoCuN25-20-7 | N08926 | |
| 1.4547 | X1CrNiMoCuN20-18-7 | 254My | S31254 |
ASTM SA269 Nerezová ocel bezproblémový ceník trubice
- a269 seamless tube
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