SAE J531_201511 Txheem suav nrog kev ntsuas qhov ntev rau hexagon sab nraud ntawm cov yeeb nkab, muab tub lim, thiab ntws ntsaws feem ntau siv rau hauv kev kho tsheb thiab cuam tshuam txog kev siv.
PHEEJ HMOO 2A - HEXAGON OUTSIDE LUB TAUB HAU YEEB POBE (130109E)
Daim duab 2B - Hexagon sab nraum lub taub hau ntsaws taub thiab cov kav dej ntsaws taub 1 (130109F)
