Kub muag Tuam Tshoj pheej yig cov menyuam shutter qhov rooj yob txoj kev tshuab.

Qhov no yog 10m rau cov menyuam kaw qhov rooj sib sau tshuab, tus nqi qis, txuag chaw, ua tau raws li cov kev xav tau yooj yim, phab ntsa vaj huam sib luag sawv ntsug.