Saib rov qab rau tag nrho cov xwm txheej ntawm cov khoom siv fasteners nyob rau hauv lub xyoo dhau los, kev lag luam ib puag ncig tsis ruaj khov, macro-tswj, thiab kev txwv nyiaj txiag nruj;kev lag luam xav tau tsis tau nce ntau;ua ke nrog kev lag luam thoob ntiaj teb kev poob qis, thiab lwm yam cou ...
Nyeem ntxiv