Hauj lwm lawm
Kev tsis
Kev Lag Luam Hlau Qhov Rooj Nrog cov Louvers lossis lub qhov rooj vents, muab cua tshuab cua ntawm cov chav lossis sab hauv ntawm cov txee. Loupered lub qhov rooj pab ua pa tawm thaum kaw thaum tseem muab txoj kev tsis pub lwm tus paub thiab kev nyab xeeb. Louatvers feem ntau pom nyob rau hauv chav dej thiab hluav taws xob lossis cov tshuab kaw tshuab txee.
Cim npe nrov: Louver Qhov Rooj, Tuam Tshoj Louver Qhov Rooj Cov Khoom Siv, Chaw Tsim Tshuaj, Hoobkas
