Raws li cov khoom sib khi rau lub tshuab hluav taws xob, nws yuav tsum muaj cov hauv qab no:
(1) Cov khoom siv nws tus kheej muaj qib siab ntawm rwb thaiv tsev thiab hluav taws xob muaj zog.
(2) Nrog zoo sealing kev ua tau zoo - watertightness thiab huab cua nruj, qhov sealing kev ua tau zoo yog qhov zoo tshaj plaws elastic seal.
(3) Lub thermal expansion coefficient zoo ib yam li cov hlau lead pas nrig thiab cov hlau seamless casing.
(4) Kub kub tsis kam.
(5) Tsawg hygroscopicity nws tus kheej.
(6) Thaum ua haujlwm kub, kev ua haujlwm ntev tsis muaj kev laus.
(7) Muaj ntau yam khoom siv thiab tus nqi qis.
(8) Cov txheej txheem yog yooj yim, yooj yim rau kev khiav lag luam, thiab tuaj yeem tsim nyog rau kev tsim khoom loj lossis ntws ntau lawm. Cov khoom sib khi ntawm cov khoom siv hluav taws xob hluav taws xob sib txawv nyob ntawm kev siv ib puag ncig ntawm cov khoom.
