Qhib Qhov Kawg Qhov Muag Rivets Nrog Kev Rhuav Tshem Mandrel

Cov Lus Qhia Txog Khoom

Hollow rivet yog ib feem me me uas feem ntau siv rau kev sib xyaw ua ke ntawm cov khoom siv sib dua thiab nyias. Nws feem ntau siv rau kev riveting ntawm cov khoom tsis yog hlau nrog lub nra me me.