● Tag nrho cov nres hauv ob sab phlu tsis muaj suab nrov, 100 feem pua asbestos-dawb
● Durability, muaj zog tiv thaiv kom ploj thiab hnav
● Kev ua haujlwm ruaj khov tiv thaiv qhov kub thiab txias.
● Cov plua plav qis qis
● Tus nqi zoo thiab kev ua haujlwm zoo
● Cov mis tshiab tshiab pab txhawb kev tiv thaiv ib puag ncig
