Dab tsi yog qhov txawv ntawm me me countersunk taub hau rivet ceev thiab loj countersunk taub hau rivet ceev?

Lub taub hau me me yog tsim rau cov ntaub ntawv tuab thiab tawv.

Lub taub hau loj countersunk yog haum rau cov ntaub ntawv nyias thiab mos.