ASTM A694 F52 F56 F60 F65 F70 Socket -Vuam Fittings
Hom: Luj tshib, Tee, Hla, Yeeb Nkab Cap, Ib nrab Coupling, Tag Nrho Coupling, Txoj Kev Luj Tshib, Lateral Tee, Flush Bushing, Hex Bushing, Hex Plug, Round Plug, Square Plug, Reducer Inserts, Union, Nipple, Socket, thiab Threadolet thiab lwm yam.
Txuj: ASME B16.11, MSS SP79, MSS SP83, MSS SP95, thiab MSS SP97 thiab lwm yam.
Loj: 1/8 "-36" lossis loj dua ar ib tus neeg xav tau
Chav Kawm: STD, XS, Sch, 160 / XXS, 2000LB-9000LB
Zhengzhou Huitong Pipeline Equipment Co., Ltd. yog ib qho ntawm cov ua lag luam thiab cov chaw muag khoom ntawm ASTM A694 F52 F56 F60 F65 F70 Socket-Vuam Fittings hauv Suav teb. Peb zoo siab tos txais koj los yuav peb ASTM A694 F52 F56 F60 F65 F70 Socket-Vuam Fittings. Peb lub Hoobkas kuj lees txais cov kev txiav txim customized. Thov pub dawb kom txaus siab rau peb cov nqi sib tw thiab kev pabcuam zoo heev.
Carbon Socket Weld Fittings|ASTM A694 High Pressure Pipe Fitting Supplier
ASTM A694 F52, F56, F60, F65, thiab F70 qhov (socket) - vuam fittings yogsiab -yieldforged carbon thiab alloy steel Cheebtsam nqi ntawm$3.80 thiab $9.50 toj ib kgnyob rau hauv 2026. Lawv muab tshwj xeeb yield zog (txog 70 ksi yam tsawg kawg nkaus) thiab siab - siab ncaj ncees, ua rau lawv tseem ceeb rau siab - roj thiab roj xa mus kav, compressor chaw nres tsheb, thiab siab - siab hydrocarbon ua units.
ASTM A694 F52 F56 F60 F65 F70 Fittings Nqe 2026
| Qib | Tus nqi ntau (USD / kg) | Tus nqi kwv yees (USD/ton) | Daim ntawv thov |
| ASTM A694 F52 | $5.0–7.0/kg | $5,000–7,000/ton | General high -pressure pipeline |
| ASTM A694 F56 | $ 5.5-8.0 / kg | $5,500–8,000/ton | Gas kis tau tus mob |
| ASTM A694 F60 | $6.0–9.0/kg | $6,000–9,000/ton | Refinery & fais fab piping |
| ASTM A694 F65 | $7.0–11.0/Kg | $7,000–11,000/ton | Offshore & siab - kev pabcuam siab |
| ASTM A694 F70 | $8.0–15.0/Kg | $8,000–15,000/ton | Critical pipeline systems |
Fittings pricing nyob ntawm qhov tshwj xeeb yield (F52 txog F70), sizing, phab ntsa thickness teem sij hawm (XS, XXS, Sch 160), thiab txiav txim ntim.
ASTM A694 F52 F56 F60 F65 F70 Socket Vuam Fittings yog dab tsi?
ASTM A694 Gr F52, F56, F60, F65, thiab F70 qhov (socket) - vuam fittings yog forged siab - siab fittings tsim raws liASTM A694 / ASTM A694M / ASTM A694 / ASTM A694 / ASTM A694 / ASTM A694 / ASTM A694 / ASTM A694 / ASTM A694 / ASTM A694 / ASTM A694 / ASTM A694 / ASTM A694 / ASTM A694 / ASTM A694 / A694M / ASTM A694 / ASTM A694 / ASTM A694 / ASTM A694 / A694M / ASTM A694 / ASTM A694 / ASTM A694 / ASTM A694 / ASTM A694 / ASTM A694 / A694M / ASTM A694 / ASTM A694 / ASTM A694 / A694M / ASTM A694 / ASTM A694) thiab ASTM A694 / A694M, ib tug specification npog carbon thiab alloy steel forgings rau pipeline siab Cheebtsam.
Hom forged Fittings muaj xws li:
Luj tshib, Tee, Coupling, Hla, Union, Niipple, Forged Outlet, thiab lwm yam
Cov qhab nia:
| Qib | Yam tsawg kawg Yield Strength |
| ASTM A694 F52 | 52 ksi (360 MPa) |
| ASTM A694 F56 | 56 ksi (385 MPa) |
| ASTM A694 F60 | 60 ksi (415 MPa) |
| ASTM A694 F65 | 65 ksi (450 MPa) |
| ASTM A694 F70 | 70 ksi (485 MPa) |
Daim ntawv thov:
- Ntev -cov kav dej nyob deb
- Natural gas kis tau tus mob
- Offshore platforms
- Refinery kav dej
- High -siab hydraulic systems
Ntsiab Cai:
- ASTM A694 npogforged carbon thiab alloy steel fittings rau siab - siab pipeline kev pab.
- F52/F56/F60/F65/F70 sawv cev rau qib sib txawv, tsis txawv qib corrosion.
- Cov qib siab dua muab kev tiv thaiv zoo dua rau siab - siab loads tab sis yuav tsum muaj kev tswj xyuas nruj dua.
- Qhov (socket) - vuam fittings yog nyiam raume txoj kab uas hla siab - siab piping (tsawg dua los yog sib npaug li 2 nti feem ntau).
- F65 thiab F70 tau siv dav hauvpipeline sib sau ua ke, LNG, offshore platforms, thiab siab -pas kis tau tus mob.
- Kev kho cua sov kom raug, kev sim cuam tshuam, thiab cov txheej txheem vuam yog qhov tseem ceeb rau kev ua haujlwm nyab xeeb.
Txog ASTM A694 F52
Cov qauv tswj hwm ASTM A694 Gr F52 forged fittings zoo li yuav nruj dua SA105N thiab SA350LF2. Txij li thaum ASTM A694 F52 Carbon Steel Threaded Couplings muab cov kev cai nruj dua rau kev hloov pauv dej siab hauv cov kav dej rau cov roj thiab cov lag luam roj.
ASTM A694 F52 fittings yog ua los ntawm duplex F52 steel khoom. Cov no feem ntau yog muab rau hauv qhov mob annealed. A694 F52 lub luj tshib yog forged nyob rau hauv ntau lawm, yog li lawv muaj zog ntau dua cam khwb cia versions. Lub caij no, ASTM A694 Gr F52 forged fittings muaj qhov ua haujlwm siab ntawm kwv yees li 2.4 npaug ntawm qhov ntsuas flange ntawm qhov kub thiab txias.
Cov A694 F52 siab forged fittings feem ntau yog siv nyob rau hauv lub zog siab / siab kub piping systems. ASTM A694 F52 steel yeeb nkab fittings yuav tsum tsis txhob raug machined ncaj qha los ntawm daim ntawv los yog khoom bar vim txaus kub ua hauj lwm (forging) yuav tsum tau los tsim ib tug forged qauv thoob plaws hauv ib feem.
Chemical Composition Limits (Max%):
- Cov pa roj carbon (C): 0.3
- Manganese (Mn): 1.6
- Silicon (Si): 0.5
- Phosphorus (P): 0.025
- Sulfur (S): 0.025
- Nickel (Ni): Raws li xav tau
- Chromium (Cr): Raws li xav tau
- Molybdenum (Mo): Raws li xav tau
Carbon Steel F52 Forged Fittings Chemical Composition
|
Qib |
C |
Mn |
P |
S |
Si |
|
ASTM A694 F52 |
0.26-0.265 |
1.60-1.64 |
0.025-0.030 |
0.025-0.030 |
0.15-0.35 |
Mechanical Properties
| Qib | Yield zog Min | Tensile zog Min | Elongation |
| F52 | 360 MPa | 455 MPa rau | 20% |
| F56 | 385 MPa ua | 490 MPa ua | 20% |
| F60 | 415 MPa rau | 520 MPa rau | 20% |
| F65 | 450 MPa | 550 MPa | 18% |
| F70 | 485 MPa ua | 565 MPa ua | 18% |
Carbon Steel F52 Forged Fittings mechanical zog
|
Lub ntsiab |
Tensile zog |
Yield zog (0.2% Offset) |
Elongation |
|
ASTM A694 F52 |
415 |
315 |
20 % |
Impact toughness yuav tsum tau
Hom Charpy V-qhov yuav tsum tau muaj:
| Chav kub | Txuj |
| -20 degree | Kev xav tau ntawm cov raj xa dej |
| -46 degree | Daim ntawv thov Arctic/LNG |
| -60 degree | Cov ntawv thov tshwj xeeb cryogenic |
F65 / F70 qib feem ntau xav tau kev kuaj xyuas ntxiv vim tias cov hlau muaj zog dua tuaj yeem poob qhov tawv yog tias tsis raug kho cua sov.
ASTM A694 F52 F56 F60 F65 F70 Kev ntsuas siab
| Qib Siab | Kwv yees qhov ntsuas siab | Qhov siab tshaj plaws ua haujlwm siab (Tswj) | Daim ntawv thov |
| Chav Kawm 3000 | 200-500 psi kev pabcuam | Nruab nrab -siab siab | Instrument kav dej |
| Chav Kawm 6000 | 600-1500 psi kev pabcuam | Siab siab | Roj & roj systems |
| Chav Kawm 9000 | 1500–2500+ psi kev pabcuam | Siab siab heev | Hydraulic thiab kev pabcuam tseem ceeb |
Qhov (socket) weld fittings yog tsim raws liASME B16.11.
ASME B16.11 Qhov (Socket Weld Fittings Size Range).
| Nominal Pipe Loj (NPS) | DN | Muaj Qib Siab |
| 1/8" | DN 6 | 3000/6000 LB |
| 1/4" | DN 8 | 3000/6000 LB |
| 3/8" | DN 10 | 3000/6000 LB |
| 1/2" | DN15 | 3000/6000/9000 LB |
| 3/4" | DN 20 | 3000/6000/9000 LB |
| 1" | DN 25 | 3000/6000/9000 LB |
| 1-1/2" | DN40 | 3000/6000/9000 LB |
| 2" | DN 50 | 3000/6000/9000 LB |
| 2-1/2" | DN 65 | 3000/6000 LB |
| 3" | DN 80 | 3000/6000 LB |
| 4" | DN100 | 3000/6000 LB |
Vuam thiab Manufacturing txheej txheem
- Cov qib siab - tawm qib zoo li F65 thiab F70 muaj cov pa roj carbon ntau dua (CE) piv rau cov qauv A105 steel. Kev siv hluav taws xob tsis raug tuaj yeem ua rau muaj kev sib tw hauv zos thiab hydrogen-induced cracking (HIC).
- Preheating:Preheating rau 100∘C txog 150∘C yog pom zoo rau phab ntsa thickness tshaj 12.7 hli, tshwj xeeb tshaj yog rau F65 thiab F70.
- Qhov (socket) Weld Gap:Tsis txhob thawb cov yeeb nkab tag nrho hauv tsev tawm tsam lub qhov (socket) pem teb. Tuav qhov yuav tsum tau 1.5 hli (1/16inch) nthuav dav qhov sib txawv ua ntej vuam kom tiv thaiv kev ntxhov siab thermal tawg thaum lub caij txias - cia.
Vuam muab tub lim
| Khoom siv hauv paus | Vuam Electrode |
| A694 F52 | E7018 / ER70S-2 |
| A694 F56 | E7018 |
| A694 F60 | E8018 series |
| A694 F65 | E9018 series |
| A694 F70 | E10018 series |
"Kev kho cua sov dab tsi (normalization lossis quench thiab temper) yuav tsum tau rau ASTM A694 F65 forgings?"
Kev kho cua sov yuav tsum nyob ntawm cov khoom tsim, tuab, thiab cov chaw tsim khoom xaiv cov txheej txheem, tab sis ASTM A694 feem ntau xav tau kev kho cua sov kom ua tiav cov khoom siv kho tshuab.
| Kev kho cua sov | Muaj feem? | Hom Lub Hom Phiaj |
| normalization | ✅ Tso cai | Grain refinement, txhim kho toughness, uniform qauv |
| Normalization + Tempering | ✅ Tso cai | Txhim kho toughness thiab txo cov residual kev nyuaj siab |
| Quenching + Tempering (Q&T) | ✅ Feem ntau rau siab - zog F65 | Ua tau siab dua yield zog thiab cuam tshuam cov khoom |
| Annealing | ❌ Feem ntau tsis siv | Tsis muab qhov yuav tsum tau muaj zog |
"Qhov kev ntsuam xyuas tsis zoo (NDT) feem ntau yuav tsum muaj rau qib siab -qib ASTM A694 fittings zoo li F60 thiab F65?"
✅ 100% Visual Inspection
✅ 100% UT Examination
✅ 100% MT Examination
✅ Hydrostatic Pressure Test
✅ Kev kuaj Hardness
✅ Cov ntaub ntawv kho cua sov
✅ Mechanical Test Reports
✅ EN 10204 3.1 Cov ntaub ntawv pov thawj
Rau kev pabcuam qaub (H₂S), cov kev xav tau ntxiv yuav suav nrog:
- NACE MR0175 / ISO 15156 ua raws
- SSC kev xeem tsis kam
- Charpy impact test
- Carbon sib npaug tswj
ASTM A694 F52 vs F56 vs F60 vs F65 vs F70
| Khoom | F52 | F56 | F60 | F65 | F70 |
| Yield zog | 360 MPa | 385 MPa ua | 415 MPa rau | 450 MPa | 485 MPa ua |
| Qib Siab | Txuj | Nruab nrab | Siab | Siab heev | Ultra siab |
| Nqi | qis tshaj | Tsawg- nruab nrab | Nruab nrab | Siab | Siab tshaj |
| Weldability | Zoo heev | Zoo heev | Zoo | Zoo | Yuav tsum tau tswj |
| Siab Muaj Peev Xwm | ★★★ | ★★★★ | ★★★★ | ★★★★★ | ★★★★★ |
| Offshore Suitability | txwv | Zoo | Zoo | Zoo heev | Zoo heev |
ASTM A694 F65 / F70 vs ASTM A105 Fittings
| Khoom | ASTM A105 1 | ASTM A694 F65 F70 |
| Khoom siv | Carbon steel forging | Siab -lub zog carbon steel forging |
| Yield zog | 250 MPa min | 450-485 MPa |
| Tensile zog | 485 MPa min | 760-795 MPa |
| Qib Siab | Txuj | Siab zog |
| Hom kev siv | General kav dej | High -siab kis |
| Txo qhov hnyav | txwv | Ua tau |
| Nqi | qis | Siab dua |
| Pipeline Suitability | Nruab nrab | Zoo heev |
Vim li cas thiaj xaiv F65/F70 Hloov A105?
Rau qhov ntev -kab kav dej:
- A105 fittings yuav xav tau: loj phab ntsa thickness; Cov khoom hnyav dua; Tus nqi thauj khoom siab dua
- F65 / F70 tuaj yeem muab tau: Kev ua haujlwm siab dua; Txo qhov hnyav; Zoo dua pipeline efficiency
ASTM A694 F60 vs ASTM A105 VS ASTM A350 LF2
| Parameter | ASTM A694 F60 | ASTM A105 1 | ASTM A350 LF2 |
| Min Yield zog | 60 ksi (415 MPa) | $36 ksi (250 MPa) | 36 ksi (250 MPa) |
| Min Tensile zog | 75 ksi (515 MPa) | 70 ksi (485 MPa) | 70 ksi (485 MPa) |
| Qhov Tseem Ceeb Tsim Kom Pom Zoo | High -siab kis | General ambient / siab temp | Tsawg-kub toughness |
| Kev sim cuam tshuam | Yuav tsum tau nyob ntawm qhov ntsuas kub | Tsis xav tau los ntawm lub neej ntawd | Yuav tsum tau kub ntawm -46 ∘C |
| Tus nqi txheeb ze Index | 1.4 | 1.0 | 1.2 |
| Daim ntawv thov | Mainline kis tau tus mob gas kab | Standard refinery kav | Tsawg-temp hydrocarbon kev pabcuam |
Qhov (socket) Weld Fittings vs Butt Weld Fittings
| Yam khoom | Qhov (socket) Weld Fittings | Pob Tawb Weld Fittings |
| Txuj | ASME B16.11 | ASME B16.9 |
| Txoj kev sib txuas | Fillet vuam | Full penetration taub qab vuam |
| Hom Loj Loj | NPS 1/8-4 nti | NPS ½-48 nti + |
| Qib Siab | 3000 / 6000 / 9000 | SCH thickness raws li |
| Installation Ceev | Ceev dua | qeeb |
| Welding Skill Requirement | qis | Siab dua |
| Internal Flow Smoothness | qis | Zoo dua |
| Fatigue Resistance | Nruab nrab | Siab dua |
| Kev tu | Hloov yooj yim dua | Zoo dua rau cov tshuab ruaj khov |
| Hom kev siv | Instrument kab, me bore piping | Main txheej txheem pipelines |
Xaiv qhov (socket) Weld Fittings Thaum:
- Cov yeeb nkab loj me me (feem ntau Tsawg dua lossis sib npaug li 2 nti)
- Siab siab
- Yuav tsum tau dismantling ntau zaus
- Qhov chaw nruab yog txwv
- Cov cuab yeej siv thiab cov kav dej siv hluav taws xob muaj feem cuam tshuam
Xaiv Butt Weld Fittings Thaum:
- Txoj kab uas hla ntau tshaj 2 nti
- Pipeline flow efficiency tseem ceeb
- Muaj kev thauj khoom hnyav hnyav
- Ntev - cov kav xa mus rau qhov deb tau koom nrog
Kev paub txog engineering thiab teeb meem
ASTM A694 Rau cov roj qaub ib puag ncig
Rau cov roj qaub ib puag ncig uas muaj H2S, raw ASTM A694 cov ntaub ntawv yuav tsum ua raws li NACE MR0175 / ISO 15156. Hardness txwv yuav tsum tsis pub tshaj 248 HV10 los tiv thaiv sulfide stress corrosion cracking (SSCS). Nco ntsoov qhia cov kev pabcuam qaub ntxiv (piv txwv li, HIC thiab SSC xeem) thaum lub sijhawm yuav khoom.
"Vim li cas ho tsis siv ASTM A105 socket weld fittings hloov A694?"
- ASTM A105 Qhov Zoo: Tus nqi qis dua; Yooj yim muaj; Zoo machinability
- A105 raug lub zog tawm los: ≈250 MPa
- A694 F65 yield zog: Ntau dua los yog sib npaug rau 450 MPa, A694 tso cai muaj peev xwm siab dua
"Vim li cas lub qhov (socket) vuam fittings tawg tom qab kuaj hydrostatic?"
1. Qhov sib txawv ntawm vuam tsis raug
Thermal expansion stress
Circumferential tawg
2. Tshaj vuam kub
Coarse grain qauv
Txo toughness
3. High Carbon sib npaug
ASTM A694 fittings puas tuaj yeem siv rau hauv kev pabcuam roj qaub?
Yog lawm, tab sis cov kev xav tau ntxiv yog ib txwm xav tau.
Yam yuav tsum tau muaj:
- NACE MR0175 / ISO 15156 ua raws
- Hardness tswj
- SSC xeem thaum xav tau
- Tswj kev kho cua sov
Lub qhov (socket) -Weld Fittings tuaj yeem siv rau hauv siab - Cov Kab Hluav Taws Xob Hluav Taws Xob?
Qhov (socket) -weld fittings yog dav siv nyob rau hauv siab - siab, me - txoj kab uas hla piping systems, tab sis lawv feem ntau tsis xaiv rau loj - txoj kab uas hla roj kis tau tus mob.
Lub qhov (socket) - vuam fittings nruj me ntsis txwv rau me me - bore piping (NPS 2 ntiv tes thiab me dua) kom tsis txhob thermal qaug zog thiab kev ntxhov siab nyob rau hauv cov kab loj dua.
Yuav ASTM A694 socket weld fittings Checklist
| Cov ntaub ntawv | Lub hom phiaj |
| Material Test Certificate EN 10204 3.1 | Chemistry thiab mechanical traceability |
| Kev kho cua sov qhia | Paub meej tias cov khoom siv kho tshuab |
| PMI daim ntawv qhia | Cov ntaub ntawv pov thawj |
| Daim ntawv ntsuam xyuas cuam tshuam | Tsawg-kub toughness |
| NDE report | Surface / Internal defect tswj |
| Dimensional soj ntsuam daim ntawv qhia | Kev ua raws li ASME B16.11 |
| NACE daim ntawv pov thawj | Kev pabcuam qaub |
Cov qauv tsim nyog
ASTM A694 Forged siab - siab fittings
ASME B16.11 Socket weld thiab threaded forged fittings
MSS SP-97 Ceg qhov hluav taws xob fittings
NACE MR0175 / ISO 15156 Sour kev pabcuam
ASME B31.3 txheej txheem piping tsim
ASME B31.4 Cov kav dej ua kua
ASME B31.8 Gas pipeline
FAQ:
Q: Thaum twg koj yuav tsum siv ASTM A694 F60 hloov tus qauv ASTM A105 rau fittings?
A: Siv ASTM A694 F60 thaum lub zog ua haujlwm xav tau qhov kev lees paub qhov tsawg kawg nkaus lub zog ntawm 60 ksi es tsis yog 36 ksi muab los ntawm A105. Qhov no tso cai rau cov kws tshaj lij los txo cov phab ntsa tuab kom zoo nyob rau hauv siab - cov kav xa dej siab, txo qhov hnyav tag nrho thiab cov khoom siv.
Q: Vim li cas lub qhov (socket) - vuam fittings tawg ntawm pob taws ntawm qhov vuam hauv siab - kev co compressor kab?
A: Cracking feem ntau tshwm sim vim txwv kev nthuav dav thermal, ntau qhov sib txuas ntawm qhov loj me, lossis tsis ua kom tawm ntawm qhov yuav tsum tau 1.5 hli nthuav dav. Tshem tawm qhov sib txawv ntawm qhov sib txawv thermal contraction stresses ncaj qha ntawm lub hauv paus ntawm weld, accelerating qaug zog tsis ua hauj lwm nyob rau hauv cyclic kev co.
Q: Can ASTM A694 F65 qhov (socket) -weld fittings siv nyob rau hauv qis - qhov kub thiab txias ntawm arctic ib puag ncig?
A: Tus qauv ASTM A694 cov lus qhia tshwj xeeb tsis tuaj yeem lav qhov sub-zero impact toughness tshwj tsis yog ntxiv Charpy V-Notch (CVN) cov kev cai xeem tau hais meej meej hauv daim ntawv xaj khoom (xws li, kuaj ntawm −20∘C lossis −46∘C). Rau cov huab cua txias, qhia txog qhov cuam tshuam- kuaj cov qauv sib txawv lossis lwm qib xws li ASTM A350 LF6.
Q: Tus nqi tseem ceeb sib txawv ntawm F52 thiab F70 qhov (socket) yog dab tsi - vuam fittings?
A: F70 yuav tsum nruj micro-alloying chemistry thiab tshwj xeeb quench-thiab-tempering kev kho cua sov cycles kom ncav cuag 70 ksi yam tsawg kawg nkaus yield zog. Qhov no ua rau cov khoom siv raw thiab ua cov nqi kwv yees li 25% mus rau 40% siab dua li cov hauv paus F52 Cheebtsam.
Q: Koj ua li cas tiv thaiv hydrogen -induced cracking (HIC) thaum vuam siab - tawm los carbon steel fittings?
A: Tiv thaiv HIC los ntawm kev siv qis- cov txheej txheem hydrogen electrode (xws li SMAW nrog E7018-1 lossis GMAW nrog cov roj tiv thaiv kev tiv thaiv), tswj xyuas qhov kub thiab txias, preheating tuab seem, thiab xyuas kom nruj ua raws li cov pa roj carbon ntau sib npaug.
Hais txog Zhengzhou Huitong Pipeline Equipment Co., LTD.
HT PIPE yog ib tug zoo-paub stockist thiab exporter. Peb yog cov khoom siv stainless / carbon / npib tsib xee alloy khoom xa khoom nrog 15+ kev xa tawm. Peb tsis tsuas yog muab cov kav dej, phaj, puag ncig, tab sis kuj yog cov yeeb nkab fittings, flanges, thiab lwm yam. Tiv tauj peb kom paub ntau ntxiv thiab cov nqi dawb.
✅ ISO 9001: 2015
✅ MTC 10204 3.1 3.2
✅ 100% PMI (Positive Material Identification)
✅ Ultrasonic Testing (Rau ASME VIII)
✅ Third-Kev Tshawb Fawb Kev Tshawb Fawb (SGS/BV/DNV/LR)
✅ NACE MR0175 / ISO 15156
Author: Chloe Pu
5+ Xyoo ntawm Kev Tshaj Lij Tshaj Lij Tshaj Tawm hauv Stainless Hlau, Nickel Alloy & Carbon Steel Hlau Kev Lag Luam
Hloov tshiab kawg: Lub Yim Hli 6, 2026 (Lub Sijhawm Beijing)
Cim npe nrov: ASTM A694 F52 F56 F60 F65 F70 Socket -Vuam Fittings, Tuam Tshoj, manufacturers, hoobkas, nqe, customized
Xa kev nug
