Dab tsi yog tooj liab casting tshuab?
Lub upward nruam tooj liab casting tshuab yog cov khoom siv tseem ceeb los ua cov hlau tsis muaj oxygen. Ib nrab ntawm cov rods tooj liab ua los ntawm electrolytic tooj liab los yog 99.99% tooj liab kub tuaj yeem ua tiav cov conductivity siab. Yog tias koj xav tsim cov hlau tsis muaj pa oxygen, koj tuaj yeem xaiv lub tshuab ua haujlwm txuas mus ntxiv. Cov tooj liab pas nrig casting tshuab ntau lawm kab tshwj xeeb yog siv los tsim cov pa oxygen tsis muaj tooj liab rods. Thaum lub crystallizer, pwm thiab lub tshuab clamping log hloov, tooj liab rods ntawm txawv specifications thiab tooj liab raj thiab lwm yam sawb khoom nrog rau lwm yam cross-sections yuav ua tau. Feem ntau, peb nrum tooj liab rods nrog specifications ntawm Φ8-30 hli.
Peb tsuas yog tsim cov hlau tsis-ferrous nruam casting tshuab nrog ntau tshaj 30 xyoo ntawm kev paub. Ntawm lawv, lub tshuab tooj liab casting yog cov kab ntau lawm. Txhawm rau kom ntseeg tau tias cov khoom lag luam zoo thiab ua haujlwm siab, peb siv lub npe nrov hauv tsev thiab txawv teb chaws thiab cov khoom siv hluav taws xob;
Lub tshuab ua haujlwm txuas ntxiv tuaj yeem ua tau raws li qhov sib txawv rauv hom thiab qhov ntau thiab tsawg raws li qhov xav tau ntau lawm, los ntawm qhov tsawg kawg nkaus txhua xyoo tso zis ntawm 1000t mus rau qhov siab tshaj plaws txhua xyoo tso zis ntawm 18,000 tons. Nyob rau tib lub sijhawm, peb muab kev pabcuam zoo tshaj plaws tom qab muag, los ntawm kev nug txog kev daws teeb meem rau kev teeb tsa thiab kev ua haujlwm, muaj cov neeg tshaj lij los pab koj hauv lub sijhawm.
Qhov zoo ntawm tooj liab casting tshuab yog dab tsi?
Siv dav
Lub upward nruam casting tooj liab pas nrig yog ib txoj kab ntau lawm rau kev ua kom ci tsis muaj oxygen-dawb tooj liab rods. Nws cov khoom siv raw yog cathode electrolytic tooj liab, uas yog cam khwb cia rau hauv tooj liab rods, tooj liab raj, thiab tooj liab strips los ntawm upward casting. Cov khoom tiav ua los ntawm tooj liab pas nrig casting tshuab yog dav siv. Piv txwv li, 8 hli tooj liab rods yog cov ntaub ntawv yooj yim rau kev tsim cov khoom siv hluav taws xob zoo thiab cov cables; cov raj tooj liab tuaj yeem ua rau hauv cov raj tooj liab los ntawm cov tshuab raj txuas txuas ntxiv, uas tuaj yeem siv rau hauv cov khoom siv hauv tsev xws li cua txias;
Copper strips tuaj yeem siv los ua cov khoom siv raw rau extruded tooj liab tuav los ntawm dov mills, uas tuaj yeem dhau los ua daim ntawv thov tseem ceeb hauv kev lag luam transformer;
Yooj yim khiav lag luam
8-20mm tooj liab rods yog dav siv nyob rau hauv tsev thiab txawv teb chaws. Txoj hauv kev zoo tshaj plaws los ua cov pas nrig tooj liab yog los ntawm lub tshuab hluav taws xob sab sauv tas mus li; Vim tias txoj kev nce siab casting thiab cov charcoal npog tuaj yeem ua tiav cov ntsiab lus tsis tshua muaj oxygen, cov pas nrig tsis muaj oxygen tuaj yeem tau txais. Lub tshuab tooj liab pas nrig tuaj yeem tsim cov pas nrig ntawm ntau qhov sib txawv los ntawm kev hloov cov graphite pwm, graphite sheath, thiab crystallizer. Cov cuab yeej siv tau yooj yim rau kev khiav lag luam thiab tsuas yog 2-4 cov neeg yuav tsum tau ua haujlwm rau tag nrho cov pas nrig tooj liab tsim tshuab.
Kev tiv thaiv ib puag ncig
Lub upward nruam casting tshuab yog tooj liab pas nrig casting tshuab uas ua cov cua sov nrog hluav taws xob cua sov. Nws yog ib yam tshiab ntawm ib puag ncig tus phooj ywg thaum tshav kub kub lub zog hloov khoom siv. Nws siv hluav taws xob ua hluav taws xob thiab hloov hluav taws xob hluav taws xob rau hauv hluav taws xob hluav taws xob los ntawm cov khoom siv hluav taws xob cua sov; nws yog rhuab ntau zaus kom ua tiav lub hom phiaj ntawm kev nruam casting. Cov pas nrig tooj liab yog ces rub tawm los ntawm lub tshuab casting thiab lub tshuab traction. Cov txheej txheem no yog hu ua lub tshuab nruam nruam; Nyob rau tib lub sijhawm, peb cov khoom siv tooj liab tooj liab siv cov khoom siv txawv teb chaws, uas tuaj yeem ua tiav cov txheej txheem txheej txheem kub thiab kev tswj xyuas qhov kub thiab txias, kom lub qhov cub kub tuaj yeem ua tiav cov khoom ruaj khov thiab tsim cov hlau tsis muaj pa oxygen zoo.
Tus nqi qis, siab tso zis ntau
The upward copper rod used in the upward continuous casting machine is a continuous casting method without stopping. The general operation refers to the casting method in which the metal material passes through the melting furnace and then passes through the crystallizer from top to bottom to condense the crystal and form the ingot. In addition, there are also ingot guide structures that pull the ingot upward and guide structures that bend the side of the ingot.Therefore, the oxygen-free copper rod produced by the upward continuous casting machine we produce has high conductivity, high elongation, and good ductility. If electrolytic copper is used as the raw material, the tensile strength of the copper rod is >170 N / mm2, thiab cov ntsiab lus oxygen tuaj yeem tsawg dua lossis sib npaug li 10 ppm.
Hom tooj liab casting tshuab
Lub tshuab nce siab nruam casting yog cov cuab yeej tseem ceeb rau kev tsim cov hlau tsis muaj oxygen, ntawm cov uas nce mus tas li casting tshuab tuaj yeem muab faib ua ntau hom.
01
tooj liab casting tshuab
Lub tshuab tooj liab pas nrig feem ntau ua rau 8-20mm tooj liab rods. Cov neeg siv tsawg tsawg xav tau 8-35mm tooj liab rods, yog li no hom tooj liab pas nrig yog ua tiav los ntawm peb cov hlau nruam casting tshuab;
02
Copper tube upward nruam casting tshuab
Copper tube casting tshuab feem ntau tsim cov raj blanks los ntawm peb lub tshuab ua haujlwm nce mus tas li. Lub tshuab nce siab nruam casting tuaj yeem tsim cov raj tooj liab nrog phab ntsa tuab ntawm 4.5mm rau kev ua haujlwm tom ntej.
03
Copper phaj upward nruam casting tshuab
Copper bar casting tshuab feem ntau tsim cov slabs los ntawm peb lub tshuab ua haujlwm nce mus tas li. Lub tshuab ua haujlwm txuas ntxiv tuaj yeem tsim cov tooj liab nrog lub thickness ntawm 16 hli rau kev ua haujlwm tom ntej.
04
Khoom siv ntawm tooj liab casting tshuab
Rauv
Lub upward nruam casting oxygen-dawb tooj liab pas nrig ntau lawm kab yog tshwj xeeb yog siv los tsim high-conductivity oxygen-dawb tooj liab rods. Thaum cov crystallizer clamping log hloov, lwm yam tshwj xeeb ntawm cov pas nrig tooj liab thiab cov raj tooj liab thiab lwm cov khoom siv sawb nrog rau lwm cov ntu tuaj yeem ua tau. Qhov kev qhia tshwj xeeb yog Φ8-20mm, lub peev xwm niaj hnub yog kwv yees li 3-50T, thiab nws siv 300KG-600KG txuas mus rau sab saum toj nruam casting chav tsev, nrog rau txhua xyoo tso zis ntawm 1000 tons / xyoo -18000 tons/xyoo. Lub tsev yog tsav los ntawm imported servo motors thiab loaded nrog domestic advanced suab tswj systems. Cov neeg siv tuaj yeem nkag ncaj qha rau lub suab ntev kom tau raws li qhov tshwj xeeb ntawm cov txheej txheem casting.
Casting tshuab
Peb lub tshuab nruam nruam txais plaub kab, lub cev muaj zog txais Japanese Yaskawa servo lub cev muaj zog, Mitsubishi PLC programming tswj, xim kov npo ua haujlwm zaub, thiab siv cov kev pab cuam hauv tsev siab tshaj plaws los tsav lub servo lub cev muaj zog, kom lub cev muaj qhov dav thiab yooj yim. ceev tswj ntau yam. Hom kev ua haujlwm meej tuaj yeem ua rau kev tswj cov lus teb raug ncav cuag 0.01 vib nas this, thiab tus reducer txais cov khoom lag luam uas tsis muaj qhov siab-precision reducer. Ua tau raws li qhov tshwj xeeb uas yuav tsum tau ua ntawm upward nruam casting trajectory.Txhua tus tuaj yeem kho raws li tus neeg siv.
Rauv qauv
Lub plhaub yog tsuas yog ua los ntawm cov hlau, hlau thiab steel phaj. Sab hauv ntawm lub cub tawg yog ua los ntawm cov av nkos refractory thiab refractory cib los tsim tag nrho lub cev rauv. Lub plhaub ntawm lub cub tawg thiab lub qhov cub lub cev yog hammered nrog quartz xuab zeb. Lub siab voltage ntawm hluav taws xob rauv transformer yog mob nrog ib tug hollow lub kaum sab xis tooj liab raj, thiab qhov tsawg voltage sab yog ib tug coil, uas yog, lub melting zawj. Tom qab lub hwj chim qhib, lub melting zawj yog melted ua ntej, thiab tom qab ntawd cov khoom siv tooj liab yog melted. Muaj ib qho dej ntws ntawm ob lub qhov cub.
Txoj cai ua haujlwm
Lub zog zaus core melting thiab rwb thaiv tsev sib xyaw ua ke yog tsim los ntawm lub hauv paus ntsiab lus ntawm electromagnetic induction. Tom qab lub induction kauj yog siv nrog ib tug AC voltage, ib tug alternating sib nqus flux yog generated. Qhov sib nqus flux tsim ib lub voj voog kaw sib nqus los ntawm cov tub ntxhais hlau. Qhov kev sib nqus sib nqus sib nqus no ua rau lub zog hluav taws xob thiab theem nrab tam sim no nyob rau hauv qhov zawj melting. Qhov tam sim no dhau los ntawm qhov tsis kam ntawm cov hlau them nyiaj thiab hloov hluav taws xob hluav taws xob mus rau lub zog hluav taws xob. Lub zog cua sov melts cov hlau nyob rau hauv lub melting groove.
Specification ntawm tooj liab casting tshuab
tooj liab pas nrig casting tshuab
| Tsis muaj. | Hom | Strand Qty | Khoom Dia.(mm) | Cov zis (T / Y) |
| 1 | SL04-Q3-8/20 | 4 | 8-20(30) | 1000 |
| 2 | SL06-Q3-8/20 | 6 | 8-20(30) | 3000 |
| 3 | SL08-Q4-8/20 | 8 | 8-20(30) | 4000 |
| 4 | SL10-Q5-8/20 | 10 | 8-20(30) | 5000 |
| 5 | SL12-Q6-8/20 | 12 | 8-20(30) | 6000 |
| 6 | SL16-Q12-8/20 | 16 | 8-20(30) | 12000 |
Daim ntawv thov ntawm tooj liab casting tshuab
Hluav taws xob xaim thiab cable
Lub tshuab nce siab nruam casting yog cov cuab yeej tseem ceeb rau kev tsim cov hlau tsis muaj oxygen. Ntawm lawv, 8-20mm tooj liab pas nrig yog lub hauv paus tseem ceeb tshaj plaws rau kev tsim cov hlau hauv tsev. Lub ci 8 hli tooj liab rods uas ua los ntawm lub upward nruam casting tshuab tuaj yeem ncaj qha nkag mus rau tom qab tooj liab hlau kos tshuab, los ntawm 8mm mus rau 1.2mm, los ntawm 1.2mm mus rau yam tsawg kawg 0.1mm yam tsis muaj teeb meem;
Nyob rau tib lub sijhawm, yog tias xav tau lub tshuab stranding tom qab, ntau cov xov hlau sib xyaw ua ke thiab xa mus rau tom ntej extruder, lawv tag nrho yog ua los ntawm 8 hli ntawm lub tshuab nce mus tas li.
Busbar thiab foils ua
Lub upward nruam casting tshuab kuj tuaj yeem tsim tooj liab tuav. Muaj ntau txoj hauv kev los tsim cov tooj liab. Ib tug ntawm lawv yog siv lub upward nruam casting tshuab. Qhov saum npoo ntawm cov sawb tsim yog du thiab ci, uas tuaj yeem ncaj qha pub rau hauv extruder, AGC txias dov zeb, annealed, thiab ua rau hauv cov ntawv ci tooj liab;
Lwm qhov yog nkag mus rau hauv kab rov tav nruam casting tshuab, ncaj qha coj cov sawb los ntawm kab rov tav nruam casting tshuab, nkag mus rau hauv lub tshuab ntxhua khaub ncaws, txias dov zeb, annealing, thiab lwm yam, thiab tuaj yeem ua rau hauv cov ntawv ci tooj liab;
Yog li ntawd, lub upward nruam casting tshuab tuaj yeem siv ncaj qha yam tsis muaj lub tshuab ntxhua khaub ncaws, uas txo cov nqi tsim khoom thiab txhim kho kev tsim khoom.
Tube casting
Lub upward nruam casting tshuab kuj tuaj yeem tsim cov raj tooj liab. Muaj ntau txoj hauv kev los tsim cov raj tooj liab. Ib tug ntawm lawv yog siv lub upward nruam casting tshuab. Lub raj tooj liab tsim muaj qhov du thiab ci ntsa iab. Nws tuaj yeem ncaj qha nkag mus rau hauv lub tshuab kos duab (kos lub raj tooj liab) kom txo tau qhov tuab ntawm qhov chaw thiab ua kom lub elongation ntawm lub raj tooj liab.
Lwm txoj kev yog nkag mus rau kab rov tav nruam casting tshuab thiab ncaj qha coj lub raj dawb paug los ntawm kab rov tav nruam casting tshuab. Kab rov tav nruam casting tshuab muaj cov phab ntsa tuab tuab thiab hnyav oxidation, uas yog tsim rau tooj dag.
Yog li ntawd, lub upward nruam casting tshuab tuaj yeem siv ncaj qha yam tsis muaj lub tshuab ntxhua khaub ncaws, uas txo cov nqi ntau lawm thiab txhim kho kev tsim khoom.
Yuav ua li cas tswj tooj liab casting tshuab?
Cov khoom nyoos
Cov tooj liab tau hais los saum toj no tsis muaj kev ua haujlwm zoo. Feem ntau, electrolytic tooj liab yog siv los xyuas kom meej cov conductivity. Yog hais tias cov seem tooj liab hlau los yog cov khoom siv liab tooj liab siv los ntawm cov khoom seem yog smelted, nws yuav tsum tau them sai sai rau cov impurities ntawm cov seem tooj liab tsis tuaj yeem muaj cov hlau uas muaj cov ntsiab lus melting siab dua li tooj liab. Cov txheej txheem khib nyiab hlau thiab cov ntaub ntawv pov tseg yuav tsum raug soj ntsuam nruj me ntsis kom tshem tawm cov impurities xws li tooj dag, av, pob zeb, yas ntau dhau, hlau hlau, thiab lwm yam, txhawm rau tiv thaiv impurities los ntawm kev sib xyaw thiab cuam tshuam rau qhov zoo ntawm tus pas nrig.
Kev tswj qhov kub thiab txias
Tswj cov kub thiab sintering lub sij hawm nyob rau hauv lub cub tawg kom tau raws li qhov yuav tsum tau ntawm cov khoom sib txawv, thiab xyuas kom meej tias lub melting rauv thiab tuav lub cub tawg muaj peev xwm koom tes nrog ib tug thiab tsim nyog rau lub casting tshuab los xyuas kom meej tias lub firing ceev tsis dhau ceev. los yog qeeb heev kom tsis txhob muaj kab nrib pleb lossis tsis sib xws hauv cov khoom. Xyuas kom lub sintering siab los xyuas kom meej tias cov khoom ntom yog ua.
Xaiv lub tshuab upcasting
Lub redox kev ua tau zoo ntawm lub cub tawg yog los tswj cov tshuaj muaj pes tsawg leeg thiab lub cev lub zog ntawm cov khoom los ntawm kev kho cov redox kev ua tau zoo ntawm lub cub tawg. Peb yuav tsum xaiv qhov tsim nyog rau sab sauv induction rauv raws li qhov loj me, tshuaj muaj pes tsawg leeg thiab lub hom phiaj ntawm cov khoom.
Cheebtsam ntawm tooj liab casting tshuab
Lub plhaub (1set)
Nws muaj lub cub tawg thiab lub qhov cub tuav. Lub plhaub sab nrauv yog tsim los ntawm cov hlau castings, steel thiab steel phaj. Lub plhaub ntawm lub cub tawg yog tsim nrog cov av nkos refractory thiab refractory cib. Qhov chaw nruab nrab ntawm lub plhaub ntawm lub cub tawg thiab lub qhov cub lub cev yog hammered nrog quartz xuab zeb. Lub siab voltage ntawm lub tshuab hluav taws xob rauv hluav taws xob yog qhov txhab nrog lub hollow duab plaub lub raj, thiab sab qis voltage yog ib co coil, piv txwv li, lub melting zawj. Tom qab lub hwj chim qhib, lub melting zawj yog melted ua ntej, thiab tom qab ntawd cov khoom siv tooj liab yog melted. Muaj ib qho dej ntws ntawm ob lub qhov cub.
Electric txee (2 pcs)
Kev tswj qhov kub thiab txias ntawm lub qhov cub tuav yog nruab nrog phau ntawv thiab hloov pauv tsis siv neeg. Thaum qhov hloov pauv tau teem rau phau ntawv, lub pob hluav taws xob tau hloov kho manually los kho qhov tso zis hluav taws xob ntawm qhov ntsuas hluav taws xob. Thaum qhov hloov pauv tau teem rau tsis siv neeg, lub rooj tsav xwm tsis siv neeg tswj lub rooj tsavxwm yuav hloov kho qhov tso zis hluav taws xob ntawm qhov ntsuas hluav taws xob raws li qhov ntsuas kub ntawm qhov cub. Lub hwj chim yam nyiaj them nyiaj tswj tau txais ob qho tib si tsis siv neeg thiab phau ntawv txoj kev.
Lub tshuab nqa khoom (2sets)
Copper pas nrig casting tshuab nqa: txo lub cev muaj zog tsav
Tsav hom: AC servo lub cev muaj zog tsav, kis tau tus mob saws gapless synchronous toothed siv tsav
Upcast tshuab (1set)
Lub tshuab nruam nruam adopts plaub kab, lub cev muaj zog txais Japanese Yaskawa servo lub cev muaj zog, Mitsubishi PLC programming tswj, kov npo ua haujlwm zaub, thiab siv cov kev pabcuam hauv tsev siab tshaj plaws los tsav lub servo lub cev, kom lub cev muaj qhov dav thiab yooj yim ceev. kev tswj hwm ntau, thiab hom kev ua haujlwm meej tuaj yeem ua rau kev tswj qhov tseeb ncav cuag 0.01 vib nas this.
Txheej txheem ntawm tooj liab casting tshuab
Cathode/Scrap tooj liab → melting rauv → hloov chav (Tshem tawm oxygen) → tuav lub cub tawg → casting tshuab (crystallizer rau tus pas nrig) → Traction to upcast rod → take-up systterm → Muag tus pas nrig lossis cov txheej txheem ntxiv rau lwm yam khoom.
FAQ
Q: Ib qho Ob npaug ntawm cov hlau casting machinery
Q: Kuv nyuam qhuav nkag rau hauv kev lag luam no, kuv tsis paub yuav npaj li cas?
Q: Kuv tuaj yeem nruab kuv lub tshuab li cas thaum nws tuaj txog?
Q: Yuav ua li cas thiaj nrhiav tau lub tshuab tsim nyog tshaj plaws?
Q: Yuav ua li cas thiaj nrhiav tau tus neeg muag khoom txhim khu kev qha?
Mus ntsib lub Hoobkas, muaj kev sib tham tim ntsej tim muag.
Q: Vim li cas thiaj muaj tus nqi sib txawv ntawm cov khoom sib txawv?
Q: Koj puas yog tuam txhab lag luam?
Q: Koj muaj lub tshuab dab tsi?
Q: Yog tias peb yuav lub tshuab los ntawm koj, koj puas tuaj yeem muab qee cov khoom siv raw thiab cov khoom seem?
Q: Cov kev lag luam twg yog tsom rau ntawm SHANGHAI SICHENG cov khoom siv?
Professional upward nruam tooj liab casting tshuab tsum nyob rau hauv Suav teb!
Shanghai Sicheng Industrial Co., Ltd. yog lub hauv paus hauv Shanghai. Nws yog ib lub chaw tsim khoom tsim kev sib koom ua ke tsim, tsim khoom thiab kev pabcuam tom qab muag nrog rau cov khoom siv ua tiav.
Vim Li Cas Xaiv Peb
Khoom siv Advanced
peb muab cov khoom zoo ntawm tooj liab casting tshuab; Cov khoom siv hom yog tag nrho los ntawm domestic thiab txawv teb chaws zoo manufacturers, xws li Schneider, Siemens, Chint, Nyiv Mitsubishi, thiab lwm yam.
Pab neeg tshaj lij
Peb muaj pab pawg tshaj lij, Muaj cov kws tshaj lij los ntawm ntau lub tuam tsev los txhawb peb cov neeg ua haujlwm muag khoom kom tau raws li koj xav tau. Peb lub chaw muag khoom thiab chav ua yeeb yam nyob hauv Shanghai City, nrog kev thauj mus los yooj yim heev rau koj mus ntsib.
OEM
Shanghai SiCheng yog koj tus kws tshaj lij tooj liab pas nrig casting tshuab chaw tsim tshuaj paus nrog ntau xyoo ntawm kev paub thiab tseem tuaj yeem muab cov kev pabcuam customized upward nruam casting tshuab manufacturing.
Kev paub nplua nuj
Peb muaj 30 xyoo dhau los ntawm cov pas nrig tooj liab nce siab casting tshuab uas txais cov kev paub nplua nuj, muab kev pabcuam sai thiab ntev dua tom qab muag rau 24H online pabcuam
Yuav koom tes nrog peb li cas?
Kev cob qhia ua ntej muag dawb
Txhawm rau lav cov neeg siv khoom muaj peev xwm ua tiav lub tshuab, yog tias cov neeg siv khoom xav tau, peb tuaj yeem pab cov neeg siv khoom kev cob qhia, suav nrog:
(1) Hom kev ua haujlwm raug
(2) Txoj kev kho kom raug
(3) Tshem tawm qhov teeb meem yooj yim
Qhia txhim kho thaum lub tshuab hauv cov neeg siv khoom rhiav
(Tus neeg yuav khoom muab daim pib dav hlau mus ncig, lub rooj tsavxwm thiab chaw nyob, kev ruaj ntseg nrog rau txhua tus neeg ntawm cov nyiaj ua haujlwm txhua hnub).
Cov ntsiab lus kev pab cuam tom qab muag thiab ntsuas
"Nws yog kev txhawb nqa tom qab muag uas ua rau kev xa khoom tiav."
(1) Lub sijhawm lav pub dawb yog: 12 lub hlis tom qab xa khoom (tshwj tsis yog cov khoom hnav)
(2) Muab cov khoom seem rau lub sijhawm ntev, kev txhawb nqa kev pabcuam thiab kev pabcuam rau lub tshuab, tab sis peb yuav them tus nqi mus ncig thiab lwm yam nqi pib.
Peb lav thaum peb tau txais cov ntaub ntawv ntawm cov neeg siv khoom, peb cov engineers yuav tshuaj xyuas tam sim ntawd, tom qab ntawd teb sai li sai tau, yog tias xav tau peb cov engineers tuaj, 24 teev yuav tuaj txog hauv av, thiab ib mus rau ob lub lis piam txawv teb chaws raws li tau txais vixaj raws sijhawm.
Kev pab cuam tom qab muag
Lub tshuab tuaj txog cov neeg siv khoom Hoobkas, peb yuav muab 24 teev tom qab muag kev pabcuam, muaj kev pabcuam tshwjxeeb tomqab muag engineer sab saum toj muab kev txhawb nqa mus ib txhis hauv online.
CE
peb lub Hoobkas
Kev koom tes rooj plaub
Cim npe nrov: Tuam Tshoj upward nruam tooj liab casting tshuab manufacturers, lwm tus neeg, Hoobkas
