Kub Muag Khoom Siv Rov Qab Tau Kho Kom Zoo Dua Lub Hnab Ntim Kas Fes Zipper Sawv Ntsug Hnab Kas Fes Nrog Lub Qhov (Valve)

Cov hnab ntawv kraft siv ntau dua thiab ntau dua hauv kev lag luam ntim khoom uas kev tiv thaiv ib puag ncig ntsuab tau hais ntau dua thiab ntau dua. Hauv lub neej txhua hnub, cov khoom ntim ntawm cov ntaub ntawv kraft tuaj yeem pom txhua qhov chaw, xws li cov ncuav mog qab zib uas cov neeg muag khoom hauv txoj kev xaiv, cov hnab kas fes taum hauv cov khw loj, cov hnab hmoov kas fes nrog lub qhov cua Wojin, cov hnab noob txiv lws suav, thiab lwm yam.
Hauv qhov kev hloov pauv "tsis yog yas" niaj hnub no, cov hnab ntawv kraft tau txais kev nyiam los ntawm ntau thiab ntau lub lag luam thiab cov tuam txhab, thiab lawv tau pib hloov cov hnab yas ntim khoom.
1. Kev ua tau zoo ntawm ib puag ncig ntawm cov hnab ntawv kraft yog qhov tseem ceeb rau lawv daim ntawv thov dav. Hauv kev lag luam ntim khoom uas them ntau dua thiab ntau dua rau ntsuab, txawm hais tias muaj ntau cov khoom siv yas ntim khoom yooj ywm raws li tsib yam lom thiab tsis muaj saj, kraft ntawv kuj muaj qhov zoo ntawm kev tsis ua qias tuaj thiab rov ua dua tshiab.
2. Ntxiv rau qhov kev ua tau zoo ntawm kev tiv thaiv ib puag ncig ntawm cov hnab ntawv kraft, nws cov kev ua tau zoo ntawm kev luam ntawv thiab kev ua tiav kuj zoo heev. Lub hnab ntawv kraft nws tus kheej yog muab faib ua lub hnab ntawv kraft dawb thiab lub hnab ntawv kraft daj. Nws tsis xav tau kev luam ntawv tag nrho. Cov kab yooj yim tuaj yeem siv los piav qhia qhov zoo nkauj ntawm cov qauv khoom thaum lub sijhawm luam ntawv, thiab cov nyhuv ntim ntawm lub hnab ntawv kraft zoo dua li cov hnab yas ntim khoom ib txwm muaj. . Kev ua tau zoo ntawm kev luam ntawv zoo txo ​​​​​​cov nqi luam ntawv ntawm cov hnab ntawv kraft, nrog rau lub voj voog ntawm kev tsim khoom ntim khoom.