Nws yog lub qhov rooj uas mus rau ntawm koj lub chaw nres tsheb. Nws feem ntau yog ntoo los yog hlau thiab qhib thiab kaw nrog ib tug kov los yog ib tug keypad. Qee qhov chaw nres tsheb muaj qhov rais hauv lawv kom koj tuaj yeem pom sab hauv thaum lwm tus yog khoom. Kuj tseem muaj ntau hom chaw nres tsheb qhov rooj xws li dov, ntu, thiab lub qhov rooj saum taub hau.
Lub qhov rooj ntawm qhov chaw nres tsheb yog txuas nrog cov menyuam nrog cov pob bearings mus rau ib txoj kev yog li nws tuaj yeem dov nce thiab nqis raws txoj kev, qhov tseem ceeb qhib thiab kaw lub nkas-las hauv kev txav ntsug.
Rolling garage doors yog hom chaw nres tsheb ntau tshaj plaws. Lawv yog ua los ntawm ntoo los yog hlau thiab dov nce thiab nqis ntawm ib tug khiav. Cov qhov rooj no yooj yim qhib thiab kaw tab sis tuaj yeem ua suab nrov.
Sectional garage doors kuj yog ua los ntawm ntoo lossis hlau tab sis lawv muaj cov seem uas khoov thaum lub qhov rooj qhib thiab kaw. Cov qhov rooj no kim dua li cov qhov rooj rolling garage tab sis lawv kuj nyob ntsiag to.
Lub qhov rooj ntawm qhov chaw nres tsheb yog qhov kim tshaj plaws ntawm lub qhov rooj chav nres tsheb. Lawv yog ua los ntawm cov hlau thiab qhib thiab kaw nrog springs. Cov qhov rooj no ntsiag to heev tab sis tuaj yeem nyuaj qhib yog tias lub caij nplooj ntoos hlav tawg.
Kuv yog Joost Nusselder, tus tsim ntawm Tools Doctor, cov ntsiab lus lag luam, thiab txiv. Kuv nyiam sim cov cuab yeej tshiab, thiab ua ke nrog kuv pab neeg kuv tau tsim cov ntawv blog tob txij li xyoo 2016 los pab cov neeg nyeem siab ncaj nrog cov cuab yeej & cov lus qhia ua khoom siv.
