Txav Beam Gantry
Raws li ib qho ntawm cov kws tshaj lij kev txav beam gantry tuam ntxhab thiab cov muag khoom hauv Suav teb, peb kuj lees txais kev txiav txim siab. Thov koj xav tias dawb mus yuav pheej yig tus nqi qis gantry muag ntawm no los ntawm peb lub hoobkas. Rau nqe kev sab laj, tiv tauj peb.