Cov nplooj ntawv tooj liab tsis zoo hais txog cov nplooj ntawv tooj liab nyias nrog hla - ntu lossis cov duab uas tsis yog cov duab plaub, voj voog, lossis lwm cov duab zoo sib xws. Lawv feem ntau raug kho kom tau raws li cov kev xav tau tshwj xeeb, xws li conductivity, sealing, tshav kub dissipation, thiab cov qauv haum.
Raws li lub npe qhia, irregularly zoo li cov nplooj ntawv tooj liab yog cov ntaub ntawv tooj liab uas tsis yog - cov qauv duab thiab cov contours tshwj xeeb lossis cov qauv. Tsis zoo li cov duab plaub los yog voj voog tooj liab, cov nplooj ntawv tooj liab tsis sib xws tau ua tiav rau hauv ntau cov duab nyuaj raws li cov qauv tsim tshwj xeeb kom tau raws li daim ntawv thov ntawm cov chaw lag luam sib txawv. Cov ntaub ntawv tseem ceeb ntawm cov ntawv tsis sib xws yog cov tooj liab dawb lossis tooj liab alloys, uas tau siv dav vim lawv cov hluav taws xob zoo heev thiab thermal conductivity, corrosion kuj, thiab kev ua haujlwm.
