Tam sim no nyob rau hauv kev tiv thaiv ib puag ncig, vaj hlau laj kab yog dav siv.
Lub vaj hlau laj kab txais cov khoom siv ntawm vaj net, uas yog ib hom laj kab laj kab khoom. Nws muaj ntau yam ntaub ntawv, nrog rau cov hlau profiled, cam khwb cia hlau, thiab ntau yam hlau meshes.
1. Yog tias nws yog cov khoom siv hlau profiled, nws qhov chaw yog du heev thiab cov khoom tsis yooj yim tawg, tab sis nws xav tau kev pleev xim ntau zaus rau kev saib xyuas.
2. Muaj ntau cov qauv ntawm cov khoom cam khwb cia hlau, tab sis qhov smoothness tsis siab heev.
3. Xaiv lub vaj mesh vaj hlau laj kab nrog cov nyhuv zoo tshaj plaws.
Yog li yog tias koj xav xaiv ib lub laj kab hlau, xaiv ib lub vaj mesh vaj hlau laj kab.