Ntxiv rau qhov ua haujlwm ntawm cov qhov rooj zoo tib yam, cov qhov rooj hluav taws kuj muaj cov haujlwm tshwj xeeb ntawm kev tiv thaiv hluav taws, kev sib cais cov pa luam yeeb, hluav taws kub thiab tiv thaiv kev khiav tawm. Lub qhov rooj hluav taws tsuas tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm hluav taws kev ncaj ncees nyob rau hauv lub sijhawm hluav taws kub tiv thaiv, thiab qhov hluav taws kub siab yog 1.0h, 1.5h, 2.0h thiab 3.0h raws li.

30 min qhov rooj hluav taws,28 nti hluav taws kub ntsuas qhov rooj, 2hr hluav taws qhov rooj,hauv qhov rooj hluav taws qhov rooj,20 feeb hluav taws ntsuas qhov rooj,2 teev hluav taws kub ntsuas iav qhov rooj,90min hluav taws ntsuas qhov rooj pob khawm,30 min qhov rooj hluav taws,pvc hluav taws kub ntsuas qhov rooj,hauv qhov rooj hluav taws qhov rooj,dej nruj & hluav taws qhov rooj (a60) 1700 x 700 mm,2 teev hluav taws kub ntsuas iav qhov rooj,hluav taws qhov rooj closer, tsis siv neeg hluav taws qhov rooj,hauv qhov rooj hluav taws qhov rooj,hluav taws qhov rooj, marine b15 qhov rooj hluav taws,2 teev hluav taws kub ntsuas iav qhov rooj,marine steel hluav taws qhov rooj rau nkoj,30 min qhov rooj hluav taws