Screw kev twb kev txuas 2.5mm thickness parallel ib leeg-sab rotatable hlau sib koom anodized 30 degree tsau hlau txuas rau coated yeeb nkab system.
Peb yog cov chaw tsim khoom ntawm cov hlau txuas.Peb cov khoom muag ncaj qha los ntawm cov chaw tsim khoom.Nrog tus nqi qis thiab kev xa khoom loj, peb yog qhov kev xaiv zoo tshaj plaws rau cov neeg muag khoom.