hluav taws kub resistant qhov rooj, 36 x 80 hluav taws nyob qhov rooj, 32 nti hluav taws nyob qhov rooj

Cov qhov rooj hluav taws hais txog cov qhov rooj uas muaj hluav taws zoo, uas tuaj yeem tiv taus hluav taws hauv lub sijhawm. Raws li cov ntaub ntawv sib txawv ntawm lub qhov rooj, nws tuaj yeem muab faib ua ob hom: ntoo hluav taws qhov rooj thiab lub qhov rooj hluav taws steel. Txais tos kom sab laj peb.

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