2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Thawj qhia hauv 1962, EPDM ib leeg-ply vov tsev daim nyias nyias tau nrov zuj zus nyob rau xyoo 1970s raws li Middle East roj embargo tau tsav tus nqi ntawm asph alt-based ru tsev thiab txo qis. zoo asph alt.
EPDM roj hmab kav ntev npaum li cas?
EPDM ru tsev daim nyias nyias nyob ruaj khov nyob rau lub sijhawm thiab tuaj yeem muaj lub neej kev cia siab tshaj 50 xyoo. Ua los ntawm cov roj hmab hluavtaws, EPDM vov tsev daim nyias nyias muaj ob yam khoom xyaw tseem ceeb, ethylene thiab propylene, uas yog muab los ntawm cov roj thiab cov nkev.
Dab tsi yog teeb meem nrog EPDM ru tsev?
Cov teeb meem EPDM ru tsev feem ntau
- punctures hauv, lossis puas rau, daim nyias nyias.
- shrinkage.
- teeb tsa tsis raug lossis tsis raug flashing.
- wrinkles txuas rau hauv ru tsev seams.
Qhov twg zoo dua EPDM lossis TPO?
TPO muaj qhov ruaj khov zoo dua li EPDM. EPDM feem ntau yuav txo qis uas tuaj yeem ua rau muaj ntau yam teeb meem ntawm koj lub ru tsev.
Yuav ua li cas ntev EPDM lossis bitumen?
EPDM muaj lub neej expectancy ntawm 50 xyoo, piv zoo kawg li rau nws cov bitumen muaj kev sib tw. Qhov nruab nrab lav ib lub tuam txhab yuav muab thaum txhim kho EPDM ntawm cov neeg siv khoom vaj tse yog 20 xyoo.
Pom zoo:
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Chengalpattu koog tsev kawm ntawv tau muaj nyob rau ntawm 29.11. 2019, thaum nws tau muab hlais tawm ntawm erstwhile Kancheepuram koog tsev kawm ntawv. Thaum twg Kanchipuram tsim? Yog li lub nroog Kancheepuram tshiab yog tsim los ntawm 01.
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Thaum twg cov kev kho tsev kho vaj tsev puas raug txiav tawm?
Feem ntau tsuas yog hauv 2 kis. Kev txhim kho tsev ntawm tus kheej qhov chaw nyob yog feem ntau tsis them se rau tsoomfwv cov nyiaj tau los se. Txawm li cas los xij, kev txhim kho cov cuab yeej siv hluav taws xob zoo ntawm koj lub cuab yeej tuaj yeem tsim nyog rau koj kom tau txais cov qhab nia se, thiab kev kho dua tshiab rau lub tsev rau kev kho mob yuav tsim nyog raws li cov nqi kho mob txiav tawm … Kev txhim kho tsev dab tsi yog txiav se tawm rau xyoo 2020?
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Wellesley College yog ib lub tsev kawm ntawv ntiav poj niam liberal arts hauv Wellesley, Massachusetts, United States. Leej twg nrhiav tau Wellesley College? Ib tug ntawm cov neeg lag luam nyiam qhov chaw zoo nkauj, so yog Henry Durant, uas xyoo 1875 tau ua rau lub teb chaws poob siab los ntawm nrhiav Wellesley College, lub tsev kawm qib siab rau cov poj niam uas tau dhau los ua ib qho ntawm cov tsev kawm qib siab uas hwm tshaj plaws hauv lub tebchaws, ntawm nws lub ts
Thaum twg biddick tsev vaj tse tsim?
Biddick Hall tau tsim nyob rau hauv the thaum ntxov 18th caug xyoo feem ntau ntawm cib. Los ntawm 1837 mus txog rau thaum Lambtons tsiv mus nyob rau ntawm Lambton 'Castle' nyob rau hauv 1932, Biddick Hall yog qhov chaw nyob ntawm Tus Neeg Saib Xyuas ntawm Lambton Estate.
