Xov Yog ib cov duab nrog cov kab sib sau ntawm cov kab ntawm sab nraud lossis sab hauv ntawm ib qho khoom.
Xov muaj nuj nqi ntawm fasteners
1. Ua haujlwm ceev thiab sib txuas ua haujlwm: haum rau cov ntsia hlau feem ntau ntawm cov theem no.
2. Kev ua haujlwm sib kis (hloov chaw muaj nuj nqi): xws li lub tshuab hluav taws xob micrometer siv rau QC tshuaj xyuas qhov loj me.
3. Sealing muaj nuj nqi: xws li kev sib txuas thiab kev sib txuas ntawm cov kav dej.
