Dov dabtsi yog khoov tshuab yog ib hom dab tsi yog cov khoom txias txias rau cov khoom siv hlau, thiab yog ib qho uas siv cov khoom siv tshuab aluminium. Xws li lub kaum ntse ntse, channel hlau, i-nqaj, hlau square raj, hlau root raj thiab ntau yam hlau tshwj xeeb zoo li tus kheej. Cov duab uas tuaj yeem ua tiav yog puag ncig, elliptical, hom kab ke, thiab yooj yim tus nqi, thiab tsim nyog rau kev txias dua tshiab thiab nruab nrab ntawm cov profiles.
Ua Haujlwm Cov Ntsiab Cai
Lub yob dabtsi yog khoov tshuab txuas ntxiv khoov cov khoom raws li lub hauv paus ntsiab lus uas peb cov ntsiab lus txiav txim siab lub voj voog. Qhov peb-cov menyuam yob dabtsi yog nws tus kheej muab ob qho kev sib kis (tsau) thiab ib qho kev kho cov menyuam (kho tau). Cov kev hloov pauv ntawm cov menyuam yaus tuaj yeem txav mus rau tom ntej lossis rov qab los pab txhawb cov kev txwv tsis pub muaj cov haujlwm ntawm cov haujlwm. Qhov kev txheeb ze nyob deb ntawm nws thiab tus kis tus menyuam tuaj yeem hloov pauv los ntawm kev kho kom nce thiab qis (pem hauv ntej (pem hauv ntej thiab nraub qaum) txoj haujlwm ntawm kev kho cov menyuam. Thaum khoov, tso cov khoom ntawm kis tau tus kab mob thiab cov hloov kho cov menyuam kom maj mam nias (ua ntej), thiab cov khoom siv tuaj yeem khi rau hauv qhov yuav tsum muaj rob voj (arc)