


*Thaum siv rau cov haujlwm uas ua tau raws li cov cai ntawm BS8417: 2012 - UC4 (Siv Chav Kawm 4) lossis UC3 (Siv Chav Kawm 3). Saib guarantee rau cov ntsiab lus
**Raws li qhov koj tsis tas yuav hloov koj lub laj kab hauv 10 xyoo vim yog qhov ua tsis tiav tom qab.