Cov txheej txheem:
- Cov ntawv thov thiab GOST npav rau cov qhov rooj hlau
- Cov qauv rau kev tsim khoom thiab teeb tsa cov qhov rooj hlau
- GOST: khij thiab ua tiav ntawm cov qhov rooj hlau
Video: Cov Ntaub Ntawv Cov Ntaub Ntawv Tsis Yooj Yim (GOST) Rau Cov Qhov Rooj Hlau, Suav Nrog Kev Tsim Khoom Thiab Daim Ntawv Lo
2024 Tus sau: Bailey Albertson | [email protected]. Kawg hloov kho: 2023-12-17 12:59
Cov ntawv thov thiab GOST npav rau cov qhov rooj hlau
Hlau qhov rooj yog ntsia tau ob qho tib si hauv thaj chaw thiab chaw tsim khoom, chaw pej xeem. Lawv yog cov siv tau ruaj khov thiab ntseeg tau, thiab qhov no tau ua tiav vim ua raws li cov cai ntawm GOST, uas cuam tshuam rau kev tsim khoom thiab teeb tsa cov qhov rooj. Nws yog qhov qauv no uas ua kom muaj kev ruaj khov thiab kev nyab xeeb ntawm cov ntawv hlau rau ntau lub hom phiaj.
Cov Ntsiab Lus
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1 Cov qauv rau kev tsim khoom thiab teeb tsa cov qhov rooj hlau
- 1.1 Daim Duab Video: tus qauv tsim ntawm lub qhov rooj hlau
- 1.2 Cov kev cai dav dav ntawm GOST rau lub qhov rooj hlau
- 1.3 Insulated qhov rooj ua raws li GOST
- 1.4 Cov qhov rooj hlau hluav taws
- 1.5 Cov qhov rooj sab nraud ua los ntawm cov hlau ua raws li GOST
- 1.6 Qhov rooj hlau nrog iav
- 1.7 Cov Qauv ntawm cov qhov rooj hlau ua raws li GOST
- 1.8 Qhov yuav tsum muaj rau fittings
- 2 GOST: khij thiab ua tiav ntawm cov qhov rooj hlau
Cov qauv rau kev tsim khoom thiab teeb tsa cov qhov rooj hlau
Kev tsim cov qhov rooj los ntawm cov hlau, thiab raws li los ntawm lwm cov ntaub ntawv, yog tswj los ntawm tsim thiab cov qauv tam sim no, uas yog GOST. Cov cai no suav nrog cov kev cai tseem ceeb ntawm kev tsim khoom, yuav tsum muaj qhov tsis suav thiab cov ntaub ntawv, nrog rau thev naus laus zis rau qhov rooj cov qhov rooj hlau. Ua tsaug rau qhov no, cov qauv tsim kom muaj kev ntseeg tau, muaj lub neej ntev kev pab thiab ua kom tib neeg muaj kev nyab xeeb.
Txhua lub qhov rooj hlau yuav tsum ua tau raws li GOST
Cov ntaub ntawv tseem ceeb tswj kev tsim cov hlau qhov rooj ntawm ntau hom yog GOST 31173-2003. Tsis tas li ntawd, lawv coj mus rau hauv tus account kev noj qab haus huv cov cai thiab cov kev cai (SNiP), uas yog cov kev cai ntawm cov khoom kom zoo thiab nyab xeeb ntawm cov khoom. Cov ntaub ntawv no tswj hwm kev tsim khoom ntawm lub qhov rooj hlau, thiab kev teeb tsa ntawm kev teeb tsa yog nqa tawm mus rau hauv tus account cov ntaub ntawv ntxiv, uas yog daim ntawv qhia thev naus laus zis tsim thiab xa los ntawm cov chaw tsim khoom.
Daim vis dis aus: tsim cov yam ntxwv ntawm lub qhov rooj hlau
General GOST kev cai rau cov qhov rooj hlau
GOST 31173-2003 yog siv rau cov qhov rooj hlau thaiv nruab nrog cov khoom siv ntsuas phoo thiab siv hauv cov tsev thiab cov qauv ntawm ntau hom. Tib lub sijhawm, daim ntawv tsis siv rau cov khoom lag luam tshwj xeeb, piv txwv li cov mos txwv tsis tau lossis cov ntawv tua hluav taws, thiab cov qauv tawg.
Cov qhov rooj uas ua raws GOST yog kev tiv thaiv txhim khu kev qha
Cov qauv txheej txheem kwv yees kev faib tawm ntawm cov hlau ua raws li cov txheej txheem hauv qab no:
- lub hom phiaj, uas yog sab nraud lossis sab hauv;
- tus qauv tuaj yeem muaj lub npov U-puab lossis nrog lub voj kaw, nrog rau pib nrog kev sib tsoo;
- lub kaw lus tuaj yeem yog los ntawm ib lub sash, ob qhov zoo tib yam lossis sib txawv canvases, nrog qhib sab nraud lossis sab hauv;
- tus naj npawb ntawm cov xov tooj cua muab kev sib khi - ib lossis ob;
- kev ua tiav ntawm cov canvas tuaj yeem yog hom xim pleev xim rau sab saum npoo, ua tiav nrog cov tawv thiab rwb thaiv tsev, cladding ua los ntawm cov iav, ntoo lossis ntoo-pobzeb qauv;
- theem ntawm kev hnov suab nrov - qib 1 (txog 32 dB), chav kawm thib ob (26-31 dB) thiab chav kawm thib 3 (20-25 dB);
- degree ntawm kev tiv thaiv: zoo tib yam, txhawb nqa thiab thaiv qhov rooj. Hauv txhua kis, muaj cov xauv qhov ntsuas ntawm qib zog.
Daim ntawv tswj kev tswj hwm yuav siv sij hawm mus rau hauv tag nrho cov yam ntxwv ntawm cov hlau qhov rooj tshuab. Piv txwv, seams thiab pob qij txha ntawm qhov chaw hlau yuav tsum tau welded. Lub thawv tuaj yeem ua qhov profile nkhaus, tab sis tuab ntawm cov khoom no yuav tsum yog los ntawm 1.5 hli. Thiab tseem rau lub qhov rooj thav duab, ib lub thawv ua los ntawm cov duab plaub yog qhov tsim nyog, thiab nws seem tsawg kawg yog 40x50 hli.
Cov thav duab yog qhov tseem ceeb ntawm lub qhov rooj kaw lus
GOST suav nrog tsis yog qhov yuav tsum tau ua tas thiaj li tsim cov qhov rooj hlau, tab sis kuj pom zoo rau kev tsim cov khoom lag luam txhim khu kev qha. Piv txwv, tus qauv pom zoo kom siv cov kab rov tav thiab cov hlau txhawb cov neeg hauv kev tsim kho qhov rooj. Lawv raug hu ua mullions thiab ua cov canvas ruaj khov, tiv taus cov neeg kho tshuab kev ntxhov siab.
Sab hauv qhov rooj zaws, koj tuaj yeem siv daim ntawv hlau, uas yog kev txhawb ntxiv ntawm lub qhov rooj. Ib lub phaj uas muaj cov hlau txuas ua ke kuj yog ib qho kev xaiv uas tau txais. Hauv qhov no, lub vuam vuam hla nrog cov ntawv txhawb nqa, uas ua kom muaj zog ntawm cov khoom kawg. Daim ntawv ntxiv nyob sab hauv tuaj yeem yog hom fibreboard lossis lwm cov ntaub ntawv cov khoom tawv. Cov qhov rooj cov khoom siv no yog siv rau hauv kev tsim cov ntau yam ntawm canvases, piv txwv li, nkag los lossis cua sov thaiv.
Insulated qhov rooj nyob rau hauv raws li GOST
Qhov tsim qauv ntawm qhov rooj insulated xav tias qhov siab tshaj plaws ntawm chav tiv thaiv los ntawm kev kub los ntawm daim nplooj thiab tiv thaiv kev kis txias los ntawm kev puas ntsoog. Cov qhov rooj zoo li no muaj cov khoom siv thermal rwb thaiv tsev hauv lawv cov qauv, uas nyob ntawm nruab nrab ntawm daim tawv nqaij sab nraud thiab sab hauv.
Cov qhov rooj thaiv tsev yog feem ntau sab nraud
Cov qauv pov thawj cov yam ntxwv nram qab no ntawm kev tsim khoom thiab teeb tsa ntawm cov qhov rooj thaiv tsev:
- Rwb thaiv tsev thermal yog muab los ntawm tsawg kawg yog ob txoj hlua sib khi uas nyob raws puag ncig ntawm tag nrho cov tsho khuam;
- tag nrho cov ntaub ntawv siv rau kev tsim cov canvas thiab cov thawv yuav tsum muaj daim ntawv pov thawj huv ntawm qhov kev nyab xeeb ntawm tus qauv;
- cov xim tsev thiab cov kua roj vanish yuav tsum muaj kev sib xyaw zoo rau lub qhov rooj hlau, thiab qhov ua tiav yuav tsum tsis txhob ya tawm, tsim cov kab nrib pleb thiab pab txhawb kom kub;
- yog tias qhov ua tiav ntawm cov ntoo lossis chipboard, tom qab ntawd cov chaw zoo li no yuav tsum tsis txhob muaj cov kab nrib pleb uas tuaj yeem ua rau tshuab ntawm canvas;
- insulated qhov rooj qauv, zoo li lwm tus, tau teeb tsa tsuas yog hauv qhov qhib npaj nrog cov npoo du;
- thaum lub sijhawm nruab, txhua qhov khoob ntawm lub thawv thiab lub phab ntsa tau kho nrog ua npuas ncauj thiab lwm cov qauv uas yuav tshem tawm qhov khoob;
- cov ntaub ntawv siv los tsim lub rooj sib dhos yuav tsum ruaj khov, nyab xeeb, tsis muaj zog, tsis raug lwj.
Cov tseev kom ua rau kev tsim thiab nruab ntawm cov kab ua haujlwm insulated koom nrog kev tsim cov leeg ntim thiab pob qij txha. Qhov no tshem tawm qhov muaj peev xwm yuav tsis kub los ntawm chav.
Cov qhov rooj hlau hluav taws
Kev tsim cov hlau qhov rooj tua hluav taws yog tswj hwm los ntawm GOST R 57327–2016, uas suav nrog qhov yuav tsum tau ua ua ntej rau hom qauv no. Cov ntaub ntawv no siv rau ib lossis ob daim nplooj ntawv hlau qhov rooj nrog iav txog 25% lossis tsis muaj iav, tsau raws li cov hluav taws thiab muaj cov khoom tiv thaiv uas tsim nyog.
Cov ntawv tiv thaiv hluav taws yog tus cwj pwm los ntawm kev tiv thaiv hluav taws thiab nruj
Cov hluav taws kub tsis kam ntawm cov kab hluav taws xob yog cim los ntawm cov ntsuas xws li E - poob qhov ncaj ncees ntawm cov canvas thaum raug cov cua sov, I - poob hluav taws kub-insulating zoo, S - tsis muaj pa taws thiab roj nruj ua los ntawm hluav taws. Cov nplaim hluav taws xob txwv tsis pub dhau 15 mus rau 60 feeb.
Lub ntsiab GOST tseem ceeb rau cov qauv, lawv kev tsim khoom thiab kev teeb tsa raug hais tawm hauv qab no:
- cov khoom tiav ntawm hom kev tua hluav taws tiv thaiv cov naj npawb ntawm qhov qhib / kaw ntawm tsawg kawg 200,000;
- hluav taws qhov rooj yog ib txwm nruab nrog lub qhov rooj kaw. Rau cov nplooj ntawv ob npaug, cov cuab yeej siv kuj tseem xav tau los tswj kev kaw qhov txuas ntawm cov nplooj ntawv;
- ib lub qhov rooj nrog lub qhov rooj qhib ze dua 90 ° yuav tsum kaw kom nruj hauv tsawg dua 5 vib nas this. Kev qhib lub vev xaib tuaj yeem nqa nrog lub zog tsis pub dhau 100 N;
- cov pa luam yeeb thiab cov pa kaw ntom nti ib txwm muaj lub thawv kaw nrog qhov pib ua haujlwm. Yog tias cov canvas nyob hauv txoj hauv kev ntawm kev txav ntawm cov neeg xiam oob khab, ces qhov chaw pib yuav tsum tsis txhob muaj nyob;
- rau kev sib khi, polymer gaskets siv, nruab nrab ntawm qhov sib txawv uas tsis pub. Cov kev xaiv ntawm gasket tshaj tawm txwv tsis pub haus luam yeeb thiab carbon dioxide los ntawm kev sib kis;
- kev teeb tsa muaj feem siv qhov tsis siv hluav taws xob foob. Cov lus sib dhos, cov xauv thiab lwm cov qauv txheej txheem ib txwm yog tsim los ntawm cov hluav taws tsis muaj zog, uas tseem yog ib qho tseem ceeb ntawm kev sau canvases. Yog tias muaj iav, ces nws yog qhov tsim nyog hluav taws tiv taus;
- kev pab lub neej ntawm cov qauv ua tiav yog tsawg kawg 10 xyoo. Nyob rau tib lub sijhawm, cov khoom yuav tsum tsis txhob sag, uas yog ua tiav los ntawm kev teeb tsa kom raug thiab ua tib zoo npaj ntawm qhov qhib.
Cov qhov rooj hluav taws tuaj yeem muaj ib lossis ob daim nplooj
Cov ntawv tiv thaiv hluav taws tuaj yeem muab ntxiv nrog txuas ntxiv, piv txwv li cov koob yees duab yees duab, cov ntsiab lus sib txuas lus. Hauv qhov no, tsis muaj kev kuaj yuav tsum txiav txim siab lawv cov qib ntawm cov hluav taws. Nws yog tsim nyog txiav txim siab tias tsis tuaj yeem tsis muaj lub ntsej muag ntse, tawm tsam ntawm cov khoom fittings.
Cov qhov rooj sab nraud ua los ntawm cov hlau raws li GOST
Cov ntawv hlau yog ib qho kev xaiv nrov xws li lub qhov rooj nkag. Xws li cov khoom siv tau ruaj, tiv taus huab cua cuam tshuam thiab lwm yam sab nraud. Lawv cov khoom lag luam yog ua tiav raws li GOST 31173-2003, uas suav nrog cov qauv yooj yim ntawm kev ua tau zoo, kev tsim khoom thiab kev teeb tsa.
Lub qhov rooj sab nraud yuav tsum ua kom muaj zog thiab ruaj khov li sai tau
Raws li tus txheej txheem, lub kaw lus muaj peev xwm ntxig ntxig rau ntawm hom kab rov tav lossis ntsug. Qhov hnyav tshaj plaws ntawm daim npog txav yuav tsum tsis pub tshaj 200 kg.
Kev nkag mus hauv lub cav yog qhov tsis kam rau qhov kub thiab txias thiab lwm qhov kev cuam tshuam ntawm huab cua
Burglar-resistant lossis cov txheej txheem sab nraum zoov sab nraum zoov feem ntau nruab nrog lub zog txhawb kom tiv thaiv lub qhov rooj tsis raug qhib tsis raug cai. Qhov yuav tsum ua rau qhov chaw ntawd, kev tsim khoom ntawm canvases thiab lawv cov kev teeb tsa tau hais nyob hauv qab no:
- cov hneev tiv thaiv tawm tsam uas pom zoo uas tau pom zoo kom muab ntsia ua ke ntawm daim ntaub thaiv qhov twg lub hinges nyob rau. Cov pins yog tsau los ntawm vuam lossis nias, thiab lawv tus lej tau txiav txim siab los ntawm cov ntaub ntawv ua haujlwm, hom qhov rooj;
- lub thawv yog nruab nrog "pob ntseg" ntawm ob sab. Cov ntu no yog siv kom ruaj khov ntawm cov canvas hauv qhov qhib. "Pob Ntseg" yog tsau rau lub thawv los ntawm vuam;
- sab hauv txhaws ntawm lub vev xaib yog ua kom muaj lub suab thiab kub kub insulating cov ntaub ntawv, uas tau muab tso kom nruj rau hauv tus ncej, tshem tawm qhov tsim ntawm voids;
- qhov tsawg ntawm theem ntawm lub suab rwb thaiv tsev yog 20 dB. Qhov no yog paub tseeb los ntawm kev siv cov khoom siv niaj hnub, kev ua haujlwm siab thiab qib siab;
- welds yuav tsum tau ua cov du, tsis muaj pob yas thiab tawg saum npoo. Kev tsis xwm ntawm cov npoo ntawm lub nqaj, qhov muaj ntawm fusion lossis hlawv-ntawm tsis pub;
- thaum lub sij hawm kev teeb tsa, kev ua haujlwm zoo yog soj ntsuam los ntawm kev tsim kho qib hydraulic.
Lub qhov rooj sab nraud tiv thaiv thaj chaw ntawm qhov chaw txias, suab nrov, tsis tau tso cai. Yog li ntawd, lawv yuav tsum yog qhov zoo, thiab kev ruaj ntseg yog ntseeg tau los ntawm qhov muaj cov khoom los tiv thaiv tub sab, piv txwv li, cov hneev ntsug tav.
Cov qhov rooj hlau nrog iav
Nkag, vestibule lossis lwm qhov rooj steel tuaj yeem nruab nrog iav. Raws li GOST cov cai, xws li ib qho ntxig yuav tsum tsis txhob nyob ntau dua 25% ntawm tag nrho cov chaw sash. Qhov no yog vim muaj kev xav tau kev nyab xeeb thiab tso cai rau koj kom muab cov kev nyab xeeb nyob hauv chav.
Iav yog feem ntau ntxiv nrog kev ua haujlwm nrog hlau wrought
Cov txheej txheem tseem ceeb ntawm cov qauv qhia tau hais tias qhov ntxig yuav tsum tau ua los ntawm tempered iav lossis triplex cov khoom, uas tsis ua rau tawg tsam thaum puas. Qhov no ua rau lub qhov rooj muaj kev tiv thaiv tiv thaiv hluav taws, cuam tshuam lossis lwm yam.
Cov qauv uas ua kom ntseeg tau cov khoom zoo ntawm cov xim ntsej muag tau txais cov qauv hauv qab no:
- kev sib txuas ntawm daim iav thiab lub qhov rooj nplooj yog lub chaw kaw ruaj ruaj uas txhim kho txhim khu kev qha ntawm lub ntsej muag;
- thaum txhim kho cov kab hlau rhuav thiab thav duab, qhov muaj qhov tawg thiab qhov khoob tsis tau tso cai, vim tias hws tuaj yeem ua rau ntawm daim iav;
- kev teeb tsa yog nqa tawm siv cov npoo uas ua los ntawm cov yas lossis ntoo, thiab cov kab ntsig ntsug yuav tsum tsis pub ntau tshaj 2 hli.
Sashes nrog iav feem ntau yog ua tiav los ntawm cov hlau grill lossis lub forged ntxig. Ua tsaug rau qhov no, cov khoom lag luam tau txais cov txiaj ntsig zoo nkauj thiab tawm tsam tub sab.
Cov tsis dhau ntawm cov qhov rooj hlau raws li GOST
Cov qauv tam sim no kwv yees qee qhov xav tau rau qhov ntev ntawm cov qhov rooj hlau tshuab. Qhov no yog vim muaj qhov tseeb tias cov khoom lag luam yuav tsum muaj qhov zoo ntawm qhov loj me thiab qhov hnyav, tsim nyog rau kev lag luam xis nyob thiab kav ntev ntawm lub qhov rooj.
Lub qhov rooj muaj ntau yam tsis yog tsim nyob rau hauv tsos, tab sis kuj loj
Thaum tsim tawm, GOST cov qauv hauv qab no raug coj los txiav txim siab txog cov khoom lag luam:
- cov kab xev ntawm flaps nrog thaj tsam ntawm 1 m 2 yuav tsum muaj qhov ntev nrog qhov sib txawv tsis ntau tshaj 2 hli. Yog tias thaj chaw ntawm cov canvas loj dua, ces qhov sib txawv ntawm qhov ntev tsis tuaj yeem yuav ntau dua 3 hli;
- cov npoo ntawm cov canvas thiab thav duab yog ncaj, thiab qhov sib txawv ntawm qhov no tsis tuaj yeem ntau dua 1 hli rau ib 1 m ntawm ntev;
- lub thawv yog nrawm nrog cov thauj tog rau nkoj, txoj kab hla ntawm uas yog tsawg kawg 10 hli;
- thaj chaw ntawm sab nraud lossis lwm lub qhov rooj hlau tsis tshaj 9 m 2. Qhov kev pom zoo sash qhov siab yog 2200 hli, thiab qhov dav dav yog txog 1200 hli.
Yuav tsum kho vajtse
Hauv kev tsim cov qhov rooj hlau yog nruab nrog lub ntsuas phoo uas ua tau raws li qhov yuav tsum tau ua ntawm 5089 thiab 538. Txhua lub hinges, lub ntsuas phoo, hneev thiab lwm qhov yog ua los ntawm cov kav hlau thiab ruaj khov.
Cov fittings yuav tsum ua raws li GOST, zoo li lub qhov rooj nws tus kheej
Thaum lub sij hawm tsim khoom thiab nruab, cov yam ntxwv hauv qab no raug coj mus rau hauv:
- cov qauv hnyav dua 200 kg lossis lub qhov rooj npaj rau tsev kho mob thiab lwm lub tsev pej xeem tau tsau nyob rau peb lub ntaiv cov kabmob sab nrauv lossis qhov chaw uas tso cai rau cov canvas yuav kho tau;
- locks thiab lwm qhov rooj tawm tau muab txoj hlua khi kom nruj, ua tib zoo nias rau lub thawv thiab ntsaws ruaj ruaj;
- lub qhov rooj ntawm pej xeem qhov chaw nruab nrog cov khoom siv tiv thaiv kev kub ntxhov, lub qhov rooj kaw, cov pa hluav taws thiab lwm yam khoom siv uas ua kom muaj kev qhib qhov nrawm;
- Burglar-resistant lossis reinforced canvases yog nruab nrog ntau tus pin txhav tas li nrog lub ntsuas phoo ntxiv nyob rau hauv kab rov tav ncej profile.
Cov khoom tiv thaiv ntawm lub qhov rooj hlau nyob ntawm qhov zoo ntawm lub xauv, kov, hinges, armored padding ntawm lub xauv. Hom thiab cov qauv ntawm cov khoom no tau muab ua ntej kev tsim khoom ntawm cov canvas.
GOST: khij thiab ua tiav ntawm cov qhov rooj hlau
Npaj tsim qhov rooj tshuab tau tsim nyog sib dhos, thiab cov ntsuas phoo xauv twb tau teeb tsa ntawm lub qhov rooj nplooj. Qhov no tswj kev teeb tsa txawm tias muaj qhov tsis yog tus kws tshaj lij, piv txwv li, yog tias tus neeg yuav khoom txiav txim siab nruab tus qauv nws tus kheej.
Cov qhov rooj hlau yog nruab nrog siv los ntawm cov khoom siv
Daim ntawv lo ntaus cim yuav tsum muaj kev tsim ntawm txhua cov khoom lag luam nrog cov ntawv sau lossis cov ntawv sau nrog cov cim ntsuas dej. Cov ntsiab lus suav nrog lub npe ntawm cov chaw tsim khoom raws li lub hom ntawm lub qhov rooj thiab hnub tim ntawm nws ntau lawm. Tus lej xaj thiab lub thwj cim ntawm kev lees txais ntawm cov khoom los ntawm cov khoom tswj hwm zoo yuav tsum tau muaj.
Cov khoom siv tiav ua tiav nrog phau ntawv rau kev ua haujlwm ntawm lub qhov rooj hlau thiab daim ntawv pov thawj zoo. Hauv cov ntaub ntawv no, tus neeg siv khoom tuaj yeem nrhiav cov lus pom zoo rau kev txhim kho lub hauv paus. Cov khoom siv kwv yees muaj lub xauv, kov, khawm thiab lwm qhov chaw tau teev tseg los ntawm cov chaw tsim khoom hauv cov lus piav qhia ntawm lub qhov rooj qauv lossis txiav txim los ntawm tus neeg yuav khoom ntxiv.
Qhov xav tau ntawm tus qauv tam sim no siv rau lub qhov rooj hlau ntawm ntau hom. Kev siv ntawm cov qauv no hauv kev coj ua tso cai rau koj kom tau cov khoom lag luam zoo thiab ua kom paub tseeb kev teeb tsa.
Pom zoo:
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Qhov rooj los ntawm MDF: cov yam ntxwv, yam ntxwv, ntau yam. Ua thiab nruab MDF qhov rooj nrog koj tus kheej tes. Lub qhov rooj kho dua tshiab. Kev txheeb xyuas, duab, cov yeeb yaj kiab
Kev Tsim Cov Khoom Hauv Tsev Sab Hauv, Cov Kev Cai Yooj Yim Thiab Qhov Yuav Tsum Ua Rau Txheej Txheem Kev Tsim Khoom
Kev tsim tawm ntawm cov qhov rooj sab hauv: cov kev cai tswjfwm thiab GOST yuav tsum ua rau cov txheej txheem ntau lawm. Cov ntaub ntawv tsim nyog thiab khoom siv
Sau Cov Vuas, Qhov Zoo Thiab Qhov Tsis Zoo, Tshuaj Xyuas Cov Khoom Nrov Ntawm Cov Ntawv Nrog Cov Lus Piav Qhia, Tus Yam Ntxwv Thiab Kev Txheeb Xyuas, Nrog Rau Cov Khoom Sib Ntxiv
Cov txheej txheem sib xyaw: keeb kwm ntawm kev siv, cov yam ntxwv, pros thiab cons. Cov yam ntxwv ntawm nruab. Kev tshuaj xyuas ntawm cov npe nrov. Kev tshuaj xyuas ntawm cov tsim thiab cov tswv tsev
Cov Ntawv Qhia Rau Cov Khoom Noj Txom Ncauj Xyoo Tshiab Nrog Rau Ib Daim Duab: Kev Xaiv Yooj Yim Thiab Qub Nrog Cov Khoom Sib Txawv, Suav Nrog Rau Menyuam Yaus
Kev xaiv ntawm cov kauj ruam los ntawm cov kauj ruam ua kom yooj yim thiab noj cov khoom noj tshiab Xyoo Tshiab rau lub rooj noj mov