【Ntau cov txheej txheem zoo meej】 Cov qauv tsim tom qab txheej txheem ntau txheej, nruab nrog cov ntaub ntawv tiv thaiv kev sib tsoo, thiab kev cuam tshuam kev nqus lub kaum sab xis tuaj yeem cuam tshuam qhov cuam tshuam loj heev.
【Ntau ergonomic】 Tus kov tau yooj yim dua rau tuav, thiab tus qauv tsim tsis yog swb yog hloov kho dua tshiab. Cov khoom siv zoo tshaj plaws ua rau nws maj mam tuav thiab tiv thaiv calluses, thaum siv, koj yuav tsis xis nyob vim tawm hws, yog li koj tuaj yeem txaus siab rau qhov ntxim nyiam ntawm kev ua kis las.
【Ntau cov khoom siv zoo heev】 Siv cov khoom siv roj hmab tshwj xeeb zoo, du tab sis tsis plam los tuav; cov khoom no yooj yim dua los so thiab ntxuav. Nws muaj kev nyab xeeb dua, tsis muaj tshuaj lom, tsis muaj mob, thiab tsis muaj ntxhiab tsw.
【Khoom cam khwb cia hlau】 Ua los ntawm cov khoom siv zoo cam khwb cia hlau los txhim kho durability, toughness, thiab stability. Cov qauv khoom yuav tsis tawg lossis khoov tom qab siv dua.