Cov txheej txheem ntawm kev tsim cov kab nrog cov yeeb nkab yas sib txuas yuav tsum tau ntxig cov yeeb nkab yas rau hauv cov yeeb nkab steel los yog aluminium alloy thiab tom qab ntawd cua sov nws los txuas cov yeeb nkab yas rau cov yeeb nkab hlau. Cov yeeb nkab yas no, uas zoo li lub tsho hnav sab hauv, yog hu ua "lined nrog yas" vim nws cov xim dawb thiab qhov tseeb tias nws yog txheej hauv cov yeeb nkab hlau.
Vim li cas nws thiaj li hu ua lined nrog yas puas yeeb nkab?
Nov 17, 2024
Xa kev nug
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