Lus piav qhia luv luv:

Lub HDB-A cov khoom faib khoom muaj nyob nrog cov khoom ruaj khov lossis cais cov khoom sib dhos. Lawv muaj ib tug fuly flush haum hlau qhov rooj nrog ib tug "slam" hom ntes. Tag nrho cov boards raug xa nrog ob qho tib si nruab nrab thiab lub ntiaj teb tuav thiab qhov nruab nrab yog tsim los qhwv ib ncig ntawm cov khoom siv los xyuas kom meej tias cov kab txuas ntxiv muaj nyob rau hauv cov khoom siv tawm Cov khoom tuaj yuav tsum raug xaiv thiab haum los ntawm lub installer Lub caj dab sab saum toj thiab hauv qab yog tshem tau thiab tseem suav nrog cov khob tawm kom haum rau qhov loj me conduds. Lub nan awmbly yog tag nrho shruried thiab lub hushart yog ib tug niere nyob rau hauv desian no kom paub meej tias nn "kub snots? khiav ocrut li thereate tsis mechanical pob qij txha. Cov laug cam contirmed rauBSEN 60439-1 & 3.