Milling burs
Raws li ib qho ntawm cov kev lag luam burs lag luam hauv Suav teb, peb tau nthuav tawm los ntawm cov khoom lag luam zoo thiab cov nqi sib tw. Thov so assured mus yuav cov luv nqi milling burs rau muag ntawm no los ntawm peb lub hoobkas. Tiv tauj peb rau cov qauv dawb.