Titanium Tubing Titanium Astm B338 Yeeb

Lub corrosion resistant Hastelloy alloys tau siv dav los ntawm kev lag luam ua lag luam. Qhov kev xav tau rau kev ua tau zoo ua rau lawv txoj kev lees paub thiab kev loj hlob hauv thaj chaw ntawm lub zog, kev noj qab haus huv thiab ib puag ncig, roj thiab cov roj thiab cov roj cuv khw desulfurization.

Alloy 800 yog npib npib tsib xee-chromium alloy nrog siab zog thiab kev tiv thaiv zoo rau oxidation thiab corrosion ntawm qhov kub. ASTM B407 UNICS NC08800 INCOLOY 800 W. NR. 1.4876 Welded yeeb nkab yog dav siv rau kev tsim kho cov khoom siv uas yuav tsum tau ua rau corrosion tsis kam, lub zog, thiab ruaj khov rau kev pabcuam txog 1500 ° F (816 ° C).

DIN933 Kev Tawm Tsam Bolts Nrog Tas Nrho Xov Duplex S23750-2507 Dub Coatingmild Hlau Stack Steel Stack Stud Bolts Thiab Ceev Manufacturerscustomecustom

Tsis suav txog N08367 tseem hu ua Alloy Al6XN yog cov carbon ntau, siab purity, nitrogen-batoy nrog zoo heev rau chloride pitting thiab compevice corrosion.

A789 unc unic s31803 thiab unspes ob qib ntawm ob chav stainless hlau uas tau siv dav hauv ntau cov ntawv thov. Cov txiv neej duplex s31803 Seamless kav yog paub rau lawv cov txiv neej ua hauj lwm zoo, muaj lub zog siab, thiab weldability thiab zoo weldability. A789 yog ib qho tshwj xeeb uas tau them seamless thiab welded tub ua los ntawm duplex steel stainless hlau.

Muaj ntau hom sib txawv ntawm cov flanges xws li plam ntawm flanges, (fled flanges, feded flanges, liab plawg, txo cov flanges thiab ntau yam los ntawm lawv cov haujlwm.

Caw 36 ® yog npib npib npib tsib xee, tsis muaj nyiaj npib ob leeg uas muaj 36%, commar 36 muaj qhov kub tsawg los ntawm kev nthuav dav ntawm + 500 ° F (260 ° C).

ASTM A182 321 1.4541 Jis B2221 Zoo ANSI B16.5 Chav Kawm 150 Forged Carbon Steel Wrd Neck Npog Flange

cov txheej txheem neeg kho tshuab xws li roj av, kev kho mob, kev lag luam zoo ib yam, thiab cov khoom siv teeb pom kev zoo ib yam, thiab cov khoom siv teeb pom kev zoo ib yam, thiab cov khoom siv teeb pom kev zoo tib yam, thiab cov khoom siv teeb pom kev zoo tib yam Tshaj tawm los ntawm Indentation Diam, uas yog intuitive thiab yooj yim. Txawm li cas los xij, nws tsis muaj feem xyuam rau cov kav hlau hlau nrog cov hlau tawv lossis nyias nyias.

El Tubo Electropulidulidulidulidulidulidulidulidulido smoo exhelente exhede deedenColia A unsoscos atmostericos. La Tuberia Hexagonal Smoora Y EndiSa Tav Picadabe Y Agrievien Por encima Por encima Por encima Por encima Por encima Por encima Por encima Por encima Por encima Por encima Por encima Por encima Por encima Por encima Por encima Por encima Por encima Por encima Por Cono

Nws tuaj yeem siv tau rau hauv flue roj desulfurization tshuab vim nws qhov zoo tshaj plaws rau cov kab mob sulphur thiab chloride ions feem ntau cov tu menyuam yaus.

Npib tsib xee raws 800 incoloy hexagonal yeeb nkab yog paub kom muaj qhov zoo tiv taus corrosion. Tshwj xeeb hais txog kev hais lus, tus incoloy 800 yeeb nkab muaj txaus tiv taus ob carburization zoo li oxidation corrosion.

Nickel 200 flanges lub npib tsib xee 200 flanges yog ruaj, tshuav ruaj khov, thiab muaj kev ua tiav zoo. Ntxiv mus, cov ASTM B564 tsis pom N02200 dig muag flanges tiv taus ib puag ncig hauv nruab nrab thiab oxidizing ib puag ncig, ua rau lawv zoo meej rau kev siv hauv cov khoom siv khoom noj khoom haus.

Hastelloy C2000 tub tshij yog siv nyob rau hauv ntau hom petrochemical suav nrog cov khoom siv tshuaj lom neeg, roj kev tsim khoom siv, roj ntxiv thiab cov nroj tsuag hluav taws xob.

Nickel alloy 400 thiab Monel 400, tseem hu ua UN tsis zoo li N04400, yog ib qho laj thawj ntawm cov menyuam yaus uas muaj feem ntau ntawm ob feem peb ntawm ob feem ntawm ob-tus tooj liab. Nickel Alloy 400 yog paub txog nws txoj kev tiv thaiv rau ntau yam ntawm cov kab mob ntawm cov xeb, suav nrog cov alkalis (lossis cov kua qaub), dej hli, thiab sulfuric acid. Txij li thaum Monel 400 lossis Alloy 400 yog cov hlau txias ua haujlwm, cov alloy muaj siab tawv, txhav thiab muaj zog. Los ntawm kev ua haujlwm txias ASTM B14400 Bar Tshuag, cov alloy yog raug rau cov kev ntxhov siab ntau dua, uas nyob rau hauv Alloy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Microy Micro ..

ASTM A193 Qib B "Bolts tau txiav txim siab rau cov ntawv thov txog li 450¡Ã) vim kub kho chrome molybdenum hlau. B7 Stud Bolts yog bolts nrog txiv neej xov thiab hex taub hau tsim kom ua los ntawm ib tug ciaj ntswj. Nws tuaj yeem yog tag nrho cov xov lossis ib nrab xov thiab muab nrog cov hex cap.

Lub corrosion tsis kam los ntawm kev sib ntxiv ntawm cov ntaub ntawv alloy, feem ntau cov ntsiab lus chromium. Lub ASTM A790 kav yog cov tiv taus pitting corrosion thiab cov pob txha corrosion. Cov kav dej kuj tseem yuav muaj hluav taws xob hluav taws xob welded.

316L 1.4401 tus yeeb nkab stainless hlau yog ib qho kev xaiv yeeb nkab zoo heev thiab cov yeeb nkab ruaj khov siv hauv ntau cov ntawv siv. Qhov no ss s31603 yeeb nkab yog tsim los ntawm cov hlau zoo 316L stainless ua rau corrosion, oxidation thiab staining rau cov chaw hnyav lossis kev siv ntxhov siab.

Nickel-Tooj-based alloy 400 monel 2.4360 txias kos cov kab mob kev ntxhov siab thaum raug rau corrosive cracking thaum raug rau cov media corrosive nyob rau hauv ib puag ncig ib puag ncig. Monel 400 yog tooj liab thiab nickel raws li alloy uas nrov niaj hnub no vim nws qhov kev ua tau zoo. Lub alloy muaj kua qaub zoo heev thiab alkali tsis kam. Tsis tas li ntawd, nws muaj cov zog tensile muaj zog, ductility, zoo heev thermal condactivity, thiab tuaj yeem yog tawv los ntawm kev ua haujlwm txias. Ib qho ntxiv, nws tuaj yeem siv rau hauv cov ntawv thov nrog qhov kub thiab txias txij li rho tawm txog 538 degrees Celsius.

ASTM A106 Seamless Lub Siab Yeeb (tseem hu ua ASME SaCE Sa106 Yeeb Nkab, Cov Roj Hluav Taws Xob, Cov Khoom Siv Hluav Taws Xob uas yuav tsum tau thauj cov pa roj thiab cov roj av uas pom ntau dua thiab cov qib siab.

Hastelloy G30 yog ib lub npib tsib xee nrog cov ntsiab lus chromium muaj txiaj ntsig zoo rau kev ua lag luam phosphoric acid thiab ntau cov oxidizing acid tawm.

Uncution Unrical cov chaw tsim khoom ntawm ntau hom kev sib tw ntawm cov kab sib txawv, hexagonal tuav, square bars thiab tuav. Cov khoom siv muaj 21% chromium, 4.5% molybdenum thiab cov roj carbon, mangelese, phosphorus, sulfur, silicon thiab nitrogen.

SCH40 monel 400 yeeb nkab raug xaiv raws li Werkstoff tus lej 2.4360 thiab tsis yog N04400. Alloy 400 cov kav hlau tseem hu ua monel aleloy 400 Yeeb Nkab, Monel 400 Yeeb & Nickel Alloy 400 Yeeb Nkab.

DupleX Steel Yeeb Nkab & Tube
Zoo li tus flanges ua los ntawm kev tuag forging lossis precision (poob ciab) casting, tuag rau cov flange muaj zog dua li cov flanges catches. Precision Profiled flanges tsim los ntawm kev quavfing lossis nrum xav tau cov qauv (cuab yeej).

Alloy 600 yog kev tiv thaiv kom huv rau feem ntau nruab nrab thiab alkaline ntsev cov kev daws teeb meem thiab yog siv nyob rau qee qhov chaw muaj kev nyab xeeb. Cov Alloy yog resistant rau chav thiab sib tov ntawm cov chav, huab cua thiab carbon dioxide.

Inconel 625 coil yog cov yam ntxwv zoo los ntawm nws cov kev tiv thaiv zoo rau oxidation, qhov siab-kub corrosion thiab qaug zog. ASTM B443 tsis yog N06625 Inconel P phaj tau siv dav hauv Aerospace, kev ua lag luam thiab roj thiab muaj zog zoo dua qub txawm tias muaj ib puag ncig zoo.

Stainless hlau tuav & Rods
Steel Yeeb Nkab & Tube
ASME B36.19M yog tus qauv kev qhia tshwj xeeb rau cov kav hlau stainless hlau, uas qhia txog kev ua siab ntev, thiab tsim khoom rau cov kav dej thiab cov txiv ntseej.
ASTM A335 P5, P9, P11, P12, P22, P91, P115

2205 yog cov neeg siv ntau tshaj plaws (Ferritic \ / ustenitic) qib ntawm stainless hlau. Nws yog siv vim nws zoo heev corrosion tsis kam thiab muaj zog siab. Ntau xyoo, ntau tus neeg muab khoom siv hlau tau txhim kho rau tus qauv duplex s31803 muaj kev txwv ntau yam tau lees paub ntau yam tau lees paub ntau yam yog tsis raws li S32205 xyoo 1996.

Duplex cov hlau uns s32205 puag ncig bar muaj siab dav corrosion tsis kam. F60 round round yog siv rau lawv cov corrosion zoo heev thiab muaj zog siab. Unren uns s32205 F60 Round bar yog lub zog siv dav dav tshaj plaws thiab yog tus cwj pwm los ntawm lub zog siab uas yog ob zaug uas cov qauv Ausenitic cov qib stainless hlau.

Stainless Hlau Yeeb Nkab Chaw Tsim Tshuaj 316L 1.4401 S31603 Stainless Hlau Yeeb Nkab
Lub 6mo super Austenic steel sib xyaw ua ke tensile lub zog thiab siab ductility nrog rau corrosion corrosion thiab ntau yam kev lag luam.
Tubos de Acero Android Outx S31254 1.4547

Hauv cov txheej txheem muaj qhov twg cov roj uas tau ntsuas yuav tsum tau ntsuas kom raug, orifice flanges ua lub luag haujlwm tseem ceeb. Lub 304 Orifice Flange yog hom ntawm orifice flange uas yog tsim los siv ATTM A182 tus qauv. A182 304 304 Action SJ400 stainless hlau orifle flange yog tsim los ntawm ib tug Austenitic stainless hlau, thiab yog dav siv nyob rau hauv ntau yam kev lag luam vim nws zoo heev corrosion-resistant yam ntxwv.

Cov welds tau nrog 304 \ / 304l muaj cov khoom zoo thiab ducility. Annealing tom qab forging yog pom zoo kom tswj hwm kev tiv thaiv siab tshaj plaws. 304 \ / 304L tuaj yeem raug muab sib xyaw ntawm 2100,000-235050Ã F.

Alloy 800 Weld Neck Flanges Peb muaj lub koob npe nrov hauv kev lag luam rau kev tsim cov hom kev ua haujlwm zoo uas yuav haum rau peb cov neeg siv khoom. Peb tsim khoom tsim prololoy 800 flanges uas muaj kev ntseeg siab thiab siab dua. Peb siv cov peev txheej hwm thiab qib siab tshaj tawm rau kev tsim ASTM B564 UNFANCES 800 flanges.

ASTM A312 TP316 yog tus qauv txheem rau kev sib khi, ncaj-leeg welded, thiab hnyav txias welded ustenitic kav hlau stainless hlau thiab kev corrosive service. Lub 316 seamless muaj steel yeeb nkab yog tsim los ntawm kev sib xyaw ntawm cov chromium, npib tsib, thiab molybdenum ua rau corrosion thiab xeb thiab xeb thiab xeb thiab xeb.
Forged Yeeb Nkab Fittings
Forged flanges
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Cov Hlau Hlau
www.htsteelpipe.com
\ / 5 / raws li
No.4 txhuam cov ntawv duplex thiab kauj 1.4462 lub phaj
Stainless Hlau Fasteners
Monel 400 YEEB RAU COV FRESE rau EYEARLASSES
Hastelloy C2000 Kav Tos LB626 Hastelloy C2000 Welded Tubing
Tsim cov qauv ASME B36.10 ASME B36.20

Nyob ntawm daim ntawv thov no tshwj xeeb tuaj yeem ua titanium thiab titanium alloys ib qho kev xaiv tsim nyog dua li cov hlau tsis muaj txiaj ntsig thiab cov nickel alloys.

Siab chromium, molybdenum thiab nitrogen cov ntsiab lus cuam tshuam nrog pitting tsis zoo rau cov medtenatent thiab corrosive corrosive conduction, thiab tseem ceeb pitting txias rau tag nrho cov xov xwm, thiab tseem ceeb pitting txias rau saum 50¡Ãc.

Nws muaj peev xwm tiv thaiv ntau yam ntawm oxidizing thiab tsis-oxidizing tshuaj, thiab cov khoom ua kom pom tseeb zoo rau pitting thiab crevice nres nyob rau hauv muaj cov chlorides thiab lwm yam.

Nws yog dav siv nyob rau hauv cov roj pov thiab roj kev tshawb nrhiav \ / ntau lawm thiab hauv kev hloov cua sov hauv petrochemical \ / tshuaj lom neeg.

ASTM B407 UNRICS N08800 INCOLOY 800 Welded Yeeb Nkab

Inconel Alloy 718? yog ib qho alloy muaj cov nyiaj npib tsib xee, chromium thiab molybdenum. Nws yog ib qho ntawm cov neeg nyiam nickel feem ntau thiab yog siv dav rau nws qhov kev tiv thaiv zoo rau kev ua kom haum thiab pitting corrosion.
Nickel Alloy tuav & RDS
Forged flanges
www.hpipe.es
Cov Hlau Hlau
www.htsteelpipe.com
\ / 5 / raws li
Inconel 718 steel hloov tuav N07718 lub kaum ntse ntse steel tuav
Stainless Hlau Fasteners
Monel 400 YEEB RAU COV FRESE rau EYEARLASSES

Nilo Alloy 36, W.NR 1.3912, Tiv Thaiv 36% Nickel-Npib thiab muaj tus nqi ntawm kev nthuav dav ntawm cov hlau.

Duplex 2205 stainless hlau (Ferritic thiab Austenitic thiab Austenitic) tau siv dav hauv cov ntawv thov corrosion tsis kam thiab lub zog. Qib S31803 hloov kho cov hlau ob peb zaug los ua cov unsist undu S32205, uas tau lees paub thaum xyoo 1996.

Txhawm rau kom xa cov raj xa dej, nws yog ib qho tsim nyog los tshem cov hose ncaj hauv cov raj xa dej. Thaum siv ntau lub raj xa dej, ntau yam kav dej yuav tsum tau siv. Thaum twg cov raj xa dej siv, lub luj tshib yuav tsum tau siv los hloov qhov loj ntawm cov raj xa dej. Thaum bifurcating, peb-txoj kev xaim cov flange kev sib txuas siv thaum lub raj xa hluav taws xob thiab kev sib txuas txias thiab kev sib tw txias thiab kev sib koom ua ke txias. , Hauv kev sib txuas ntawm ntau cov twj paj nruag, kuj tseem muaj cov txuas txuas thiab ntsaws ntawm cov twj paj nruag theem.

SMO 254 Cov kav dej tuaj yeem tiv taus cov kev ntxhov siab ntawm cov neeg muaj kev ntxhov siab thiab alloy 254 smo yeeb nkab siab ua haujlwm nyob rau hauv cov kub thiab xeb ib puag ncig.

Txhawm rau kom xa cov raj xa dej, nws yog ib qho tsim nyog los tshem cov hose ncaj hauv cov raj xa dej. Thaum siv ntau lub raj xa dej, ntau yam kav dej yuav tsum tau siv. Thaum twg cov raj xa dej siv, lub luj tshib yuav tsum tau siv los hloov qhov loj ntawm cov raj xa dej. Thaum bifurcating, peb-txoj kev xaim cov flange kev sib txuas siv thaum lub raj xa hluav taws xob thiab kev sib txuas txias thiab kev sib tw txias thiab kev sib koom ua ke txias. , Hauv kev sib txuas ntawm ntau cov twj paj nruag, kuj tseem muaj cov txuas txuas thiab ntsaws ntawm cov twj paj nruag theem.

Cov ntawv thov rau Duplex 1.4462 coated studs yog cov roj thiab roj kev lag luam, kev lag luam ntawm kev lag luam tshuaj, thiab qauv siv tshuaj yeeb yaj kiab thiab cov qauv roj av. Duplex 2205 studs muaj cov khoom tshwj xeeb rau cov chaw sib txawv. Cov tshuaj lom neeg muaj pes tsawg leeg ntawm lub txiv neej 2205 muaj cov chromium, npib tsib xee thiab molybdenum nyob rau hauv cov muaj pes tsawg leeg. Lub 2205 studs yog tus nqi-ua tau zoo thiab qis dua lwm cov qib Duplex thiab muaj kev xav tau siab.

Cov Flange Txuas feem ntau muaj cov teeb meem toastion, thiab cov to taub dej kom muaj nuj nqis yuav tsum tau tswj nyob rau hauv cov txheej txheem uas tau tso cai.

Lub ASTM A420 qib kev thov tawm WPL6 tuaj yeem yog seamless, welded lossis fabricated. Muaj ntau hom fittings xws li cov koomhaum, plugs, couplings, khoov, lub kaus mom thiab luj.

Nws ua rau pom zoo tsis kam mus rau nruab nrab thiab txo qhov chaw. Cov alloy no tsim ib zaj yeeb yaj kiab oxide, kev tiv thaiv zaj duab xis uas tsis tawm mus, tab sis nws khaws cov oxidation superi-sauv tsis kub.

Inconel 600 puag ncig bar yog npib tsib xee-raws li benign carburization thiab zoo heev corrosion thiab kub heev. Inconel 600 cov khoom sib txuas ua haujlwm tiv thaiv kom qhuav cl2 thiab ntau lwm cov roj sib txawv ntawm cov mob me thiab kub. Alloy 600 Bar yog npib tsib xee-chromium alloy nrog zoo oxoidation decomposition decomposition decomposition thiab acid oxidation ntawm ntug dej kub.

Inconel 718 yog chromium thiab npib tsib xee raws li cov khoom siv titanium ntxiv, niobium, hlau, molybdenum thiab aluminium. Qhov no alloy muaj siab dua zog thiab kav kav rau withstress ill ib puag ncig. Inconel 718 ncig bar muaj kev tiv thaiv zoo thiab solderability. Cov kab no tau muaj ntau dua tag nrho cov corrosion tsis kam ntawm qhov kub thiab cov ntawv thov siab.

Hastelloy C2000 muaj nyob rau ntau qhov ntau thiab tsawg, hom no-lickel-molybdenum alloy muaj zog thiab corrosion tsis kam.

Hom 321 Stainless hlau yog ib qho tsis muaj tshuaj tiv thaiv stainless hlau. Nws muaj ntau yam kev ua tau zoo ntawm hom 304, tsuas yog rau qib siab ntawm titanium thiab carbon. Hom 321 Muaj cov ntaub qhwv cov ntaub hlau zoo nkauj heev, nrog rau kev muaj zog heev txawm tias poob cryogenic kub.
304 Piping spools yog tsim los ntawm 304 stainless hlau, ib qho khoom siv nrov thiab nrov tshaj plaws hauv ntau cov ntawv thov uas xav tau kev tiv thaiv kom xeb thiab oxidation. Cov kev tshaj lij no yog preooss siv cov machinery thiab cov txheej txheem tshwj xeeb, uas paub meej tias lawv muaj tseeb thiab ntseeg tau.
Al6XN yog superaustenitic steel hlau nrog kev ua tau zoo rau chloride pitting, crevice corrosion thiab kev nyuaj siab corrosion tawg. Al6XN yog 6 Moly alloy uas tau tsim rau thiab siv hauv kev sib cav sib ceg siab. Nws muaj cov npib tsib xee (24%), Molybdenum (6.3%), nitriumen thiab chromium cov ntsiab lus tawg, thiab tshwj xeeb corrosion tiv thaiv. Al6XN yog feem ntau siv rau nws cov kev txhim kho pitting thiab crevice corrosion tsis kam hauv chlorides. Nws yog ib qho tsim nyog thiab weldable stainless hlau.

Hlau tuav & RDS
Super Duplex uns S32760 \ / F55 Flanges yog ua los ntawm Super Duplex Qib ntawm Stainless Hlau. Cov khoom muaj 24% chromium, 6% molybdenum, tooj liab, mangsten, mangnese, siospor, hlau thiab leej faj. Lub ASTM A182 f55 Flange muaj lub zog siab thiab muaj kev tiv thaiv siab. Cov flanges tau ua nyob rau hauv ansi ba6.5, arti b16.47 thiab lwm cov qauv thoob ntiaj teb.

Inconel 718 yog npib tsib xee-chromium-based alloy uas feem ntau siv nyob rau hauv cov ntawv thov kub siab xws li aerospace thiab roj turbines. Ib qho ntawm cov tseem ceeb tshaj plaws hauv kev tsim cov astm b670 inconel 718 daim ntawv yog lub phaj dov. Muaj ob hom tseem ceeb ntawm inconel 718 daim hlau muaj nyob rau ntawm kev ua lag luam: kub dov thiab cov phiaj txias. Cov paib.

ASTM A335 kav (P5, P5, P11, P22, P91 Pipes li Chrome thiab tau siv dav hauv ntau yam kev lag luam. Raws li cov ntaub ntawv ua lag luam, nws yog ib qho ntawm cov kav dej feem ntau siv hauv kev lag luam boiler, cov chaw kub, lub zog kub thiab ultra-siab siab.

Tsau-nthuav dav iav-encapsulated girapsulated alloys, muaj ib qho kev nthuav dav thermal, muaj ib lub khob hluav taws xob nthuav dav zoo ib yam li qhov ntsuas kub

Txhawm rau kom xa cov raj xa dej, nws yog ib qho tsim nyog los tshem cov hose ncaj hauv cov raj xa dej. Thaum siv ntau lub raj xa dej, ntau yam kav dej yuav tsum tau siv. Thaum twg cov raj xa dej siv, lub luj tshib yuav tsum tau siv los hloov qhov loj ntawm cov raj xa dej. Thaum bifurcating, peb-txoj kev xaim cov flange kev sib txuas siv thaum lub raj xa hluav taws xob thiab kev sib txuas txias thiab kev sib tw txias thiab kev sib koom ua ke txias. , Hauv kev sib txuas ntawm ntau cov twj paj nruag, kuj tseem muaj cov txuas txuas thiab ntsaws ntawm cov twj paj nruag theem.

Stainless hlau yeeb nkab steel yog ib hom hollow ntev round steel, uas yog dav siv hauv kev lag luam kis pipelines thiab

Qib 316 Stainless hlau fackenerers yog tsim rau cov ntawv thov hauv cov kev mob ib puag ncig huab. Yog li, cov lag luam no yuav tsum muaj 300-qib stainless hlau series muab kev tiv thaiv txhim kho thiab ntau dua corrosion tsis kam. SS 316 Bolts thiab txiv ntoo yog tsim ntawm ni-m al